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  • top tweets WebLogic Partner Community – November 2012

    - by JuergenKress
    Send us your tweets @wlscommunity #WebLogicCommunity and follow us on twitter http://twitter.com/wlscommunity Please feel free to send us your news! Andrejus Baranovskis ADF BC View Accessor To Centralize Business Logic Processing http://fb.me/ZdH3reTC OracleBlogs? Devoxx Coming Up! http://ow.ly/2t855p OTNArchBeat Webcast: #JMX with #Oracle #WebLogic Server 12c - featuring @FrankMunz Nov 13 10am PT 1pm ET http://pub.vitrue.com/ulyl OracleSupport_ Detailed nomenclature of #weblogic logging services http://pub.vitrue.com/LwLK WebLogic Community Java Management Extensions with Oracle WebLogic Server 12c&ndash;Webcast Nocember 13th 2012 http://wp.me/p1LMIb-oH Andrejus Baranovskis? Difference Between Initialized and New Mode in ADF BC http://fb.me/1d00veJLm Oracle Technet? Ondrej Brejla shares information on the release of NetbBeans IDE 7.3 Beta 2. http://pub.vitrue.com/Q0Ji OracleBlogs? Oracle ADF Essentials & ADF training material now on the iPad By Grant Ronald http://ow.ly/2t6m7y Markus Eisele #NetBeans 7.3 Beta2 is Out! https://blogs.oracle.com/netbeansphp/entry/netbeans_7_3_beta2_is … WebLogic Community Oracle ADF Essentials & ADF training material now on the iPad By Grant Ronald http://wp.me/p1LMIb-oj Frank Munz? Also next week, Tue, 10am PST: @Oracle devcast about WLS 12c JMX ecosystem 4 DevOps. Join now: http://goo.gl/oikWX Oracle WebLogic #EclipseLink #JPA deployed on #webLogic using #Eclipse #WTP very detailed tutorial http://pub.vitrue.com/tckQ Middleware Magic Middleware Magic Completes 2 year of spreading its Magic http://goo.gl/fb/8vdA4 #Weblogic #J2EE #news Adam Bien? Interview In The "Java Spotlight Episode 107" Podcast: I had a nice chat during the JavaOne 2012 conference in ... http://bit.ly/VBLiij OracleSupport_WLS? #WebLogic 12c example code projects with a focus on #Java EE 6 http://pub.vitrue.com/Og8C JDeveloper & ADF? ADF Insider: Angels in the ADF Architecture http://dlvr.it/2RYBjq Andreas Koop [blog post] ADF: Smart Input Date Client Converter: EnvironmentTested with JDeveloper / ADF 11.1.2.3(Should also... http://bit.ly/SIValJ Steven Davelaar Added 16 new ADF samples from @andrejusb http://java.net/projects/smuenchadf/pages/ADFSamplesAuthorABA1 … JDeveloper & ADF? Transaction Level ADF BC Entity Validation http://dlvr.it/2QWN7K Oracle Exalogic? Do you know the secret to Exalogic's speed? It's called Exabus. More at the OTN Garage - http://youtu.be/dreH2XmplyA OracleSupport_WLS New tutorial: configure and administrate #clusters http://pub.vitrue.com/Gduy JDeveloper & ADF? Workaround for an Xcode/iOS SDK Issue http://dlvr.it/2QTRlJ Masoud Kalali? #GlassFish trunk will switch to require JDK 7 to build, details at GlassFish #JDK 7 Switch FAQ: https://wikis.oracle.com/display/GlassFish/JDK+7+Switch+FAQ … ADF Code Corner? ADF Oracle Magazine Article "Master and Commander" about global command pattern strategy for regions with ctx events http://bit.ly/PLvxUL Maciej Gruszka? @wlscommunity Cloud Application Foundation webcast about OOW announcements soon avail for replay Adam Bien? Real World Java EE Patterns Book ("Green Edition") is available for lending. For unlimited time and free: http://www.amazon.com/gp/feature.html/?ie=UTF8&camp=1789&creative=390957&docId=1000739811&linkCode=ur2&tag=wwwadambienco-20 … WebLogic Community Slides for todays #WebLogicCommunity are uploaded to the workspace. Not yet a member http://www.oracle.com/partners/goto/wls-emea … #weblogic Adam Bien? My (unprepared) night hacking starts at 11 AM CET: http://nighthacking.com WebLogic Community We will start our ExaLogic webcast in 5 minutes http://weblogiccommunity.wordpress.com/2012/10/31/join-us-for-our-weblogic-communtiy-webcast-on-november-2nd-2012-oow-update-weblogic-exalogic/ … Gertjan van het Hof? WebLogic Communtiy webcast on November 2nd 2012 11:00 CET! OOW update WebLogic & ExaLogic « WebLogic Community http://weblogiccommunity.wordpress.com/2012/10/31/join-us-for-our-weblogic-communtiy-webcast-on-november-2nd-2012-oow-update-weblogic-exalogic/ … GlassFish? Java EE 7 scheduled posted http://java.net/projects/javaee-spec/pages/Home … slated for final release on 4/29/2013 OracleSupport_WLS? Updating #EclipseLink in #WebLogic http://pub.vitrue.com/j2wc WebLogic Community Join us for our WebLogicCommunity Webcast tomorrow November 2nd. Ge tan update an all OOW announcements http://weblogiccommunity.wordpress.com/2012/10/31/join-us-for-our-weblogic-communtiy-webcast-on-november-2nd-2012-oow-update-weblogic-exalogic/ … #wlscommunity OTNArchBeat? Oracle ADF Mobile - Login Functionality | @AndrejusB http://pub.vitrue.com/Wqqk WebLogic Community? OpenWorld General Session 2012: Middleware & JavaOne http://wp.me/p1LMIb-oe OracleSupport_WLS? How to use RDA to generate #Weblogic thread dumps at specified Intervals? http://pub.vitrue.com/auuP OracleBlogs? Join us for our WebLogic Communtiy webcast on November 2nd 2012! OOW update WebLogic & ExaLogic http://ow.ly/2sXAel OracleSupport_WLS? Monitoring #Spring in #WebLogic - #Middleware magic blog post http://pub.vitrue.com/OcSq ultan? Oracle Launches Mobile Applications User Experience Design Patterns https://blogs.oracle.com/userassistance/entry/oracle_launches_mobile_applications_user … @odtug @adf_emg @tapadoo #xcake #android WebLogic Community? Managing EclipseLink using JMX http://wp.me/p1LMIb-oh WebLogic Community? WebLogic Partner Community Newsletter October 2012 http://wp.me/p1LMIb-n5 Simon Haslam? #ukoug Oracle Scene mag: "Getting to Know Oracle Fusion Middleware" into by @wlscommunity & myself http://viewer.zmags.com/publication/81b2adef#/81b2adef/30 … Andrejus Baranovskis LOV Validation and Programmatic Row Insert Performance http://fb.me/167ehvEBL Andrejus Baranovskis? ADF Project Development Time Distribution http://fb.me/zMijgiKF Edwin Biemond? Using JSON-REST in ADF Mobile: In the current version of ADF Mobile the ADF DataControls ( URL and WS ) only sup... http://bit.ly/Rdr9IX WebLogic Community Oracle Enterprise Manager Cloud Control 12c: Best Practices for Middleware Management http://wp.me/p1LMIb-mA WebLogic Community? Tuxedo 12c http://wp.me/p1LMIb-my Lucas Jellema? Online and free: ADF Advanced eCourses from Oracle - http://download.oracle.com/tutorials/jtcd3/ecourse_adf_part1/html/temp_frameset/index.htm … and http://download.oracle.com/tutorials/jtcd3/ecourse_adf_part2/html/temp_frameset/index.htm … Lucas Jellema? Finally Luc can tell all his stories on ADF Mobile - he is Mr ADF Mobile after all. On the AMIS Blog: http://technology.amis.nl/2012/10/22/adf-mobile-is-now-generally-available/ … with more coming! Gerkmann-Bartels [blog] ADF Mobile Samples are still there... http://maybe-interesting.blogspot.de/ Markus Eisele Do you know the #Oracle #Parcel #Service? A #weblogic #JavaEE6 example app on #github! http://bit.ly/XNVnqS by @jeffreyawest ! Contribute! WebLogic Community? Distribute the WebLogic Community newsletter October editoin - read it! or register for #wlscommunity http://www.oracle.com/partners/goto/wls-emea … #opn #oracle OracleBlogs? Getting Started with ADF Mobile Sample Apps http://ow.ly/2sOJOi Pieter Kranenburg? Oracle Forms Modernization? Checkout: http://forms.qafe.com for retainment of investment, knowledge and being future proof #OracleForms Markus Eisele [blog] Review: "Java EE 6 Cookbook for Securing, Tuning, and Extending Enterprise... http://dlvr.it/2MWGCq #packtpub #javaee #review Gertjan van het Hof ADF Mobile HTML5 is available. https://blogs.oracle.com/fusionmiddleware/ … Adam Bien? My (Adam Bien) JavaOne Session Videos and Resources: CON3896 - Interactive Onstage Java EE Overengineering, Mond... http://bit.ly/XNpSNm Torsten Winterberg? #ADF Mobile is GA now on OTN: http://www.oracle.com/technetwork/developer-tools/adf/overview/adf-mobile-096323.html … Finally! Oracle WebLogic? New Blog Post: Instructions on how to configure a WebLogic Cluster and use it with Oracle Http Server http://ow.ly/2sOdPJ luc bors? #Oracle #ADF Mobile is production Download the extension here http://bit.ly/TChziZ WebLogic Community? Move Data into the Grid for Scalable, Predictable Response Times http://wp.me/p1LMIb-mw Andrejus Baranovskis? Why Oracle ADF Developers are Sensitive People http://fb.me/209osORtC Lucas Jellema? Article by Edwin Biemond on the AMIS blog on Configuring FMW Servers using Puppet - http://technology.amis.nl/2012/10/13/configure-fmw-servers-with-puppet/ … - integration of WebLogic in Puppet Oracle UsableApps Must Read: New Oracle Applications UX White Paper: Research and Design Process: http://www.oracle.com/webfolder/ux/applications/Fusion/whitePapers.html … @oracle #usableapps Sten Vesterli? You know ADF Security is missing from the free ADF Essentials? Check out a solution by @andrejusb: http://andrejusb.blogspot.com/2012/10/adf-essentials-security-implementation.html … Oracle WebLogic Monitoring #Spring in #WebLogic - #Middleware magic blog post http://pub.vitrue.com/uT69 WebLogic Community Java Cloud Service for developers http://wp.me/p1LMIb-mu Gerkmann-Bartels #MUST read 4 #WLS Admins: How to Analyze Java Thread WebLogic Community? top tweets WebLogic Partner Community &ndash; October 2012 http://wp.me/p1LMIb-ob Andrejus Baranovskis? ADF Mobile - Login Functionality http://fb.me/2gxwZV9jc WebLogic Community? “@MaciejGruszka: Another #WebLogic bootcamp for #Oracle partners. Right now - Copenhagen Denmark” THANKs trainings at https://blogs.oracle.com/emeapartnerweblogic/ … Dumps http://zite.to/RKyx2x OracleBlogs? top tweets WebLogic Partner Community October 2012 http://ow.ly/2sXuAn eclipsecon? Today is the Call for Papers early bird deadline. Submit a session now! http://eclipsecon.org/2013/early-talk-selection … WebLogic Community? Join us for our WebLogic Communtiy webcast on November 2nd 2012! OOW update WebLogic & ExaLogic http://wp.me/p1LMIb-oA WebLogic Partner Community For regular information become a member in the WebLogic Partner Community please visit: http://www.oracle.com/partners/goto/wls-emea ( OPN account required). If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Mix Forum Wiki Technorati Tags: twitter,WebLogic,WebLogic Community,Oracle,OPN,Jürgen Kress

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  • Turning on collision crashes game

    - by MomentumGaming
    I am getting a null pointer excecption to both my sprite and level. I am working on my mob class, and when I try to move him and the move function is called, the game crashes after checking collision with a null pointer excecption. Taking out the one line that actually checks if the tile located in front of it fixes the problem. Also, if i keep collision ON but don't move the position of the mob (the spider) the game works fine. I will have collision, and the spider appears on the screen, only problem is, getting it to move causes this nasty error that i just can't fix. true Exception in thread "Display" java.lang.NullPointerException at com.apcompsci.game.entity.mob.Mob.collision(Mob.java:67) at com.apcompsci.game.entity.mob.Mob.move(Mob.java:38) at com.apcompsci.game.entity.mob.spider.update(spider.java:58) at com.apcompsci.game.level.Level.update(Level.java:55) at com.apcompsci.game.Game.update(Game.java:128) at com.apcompsci.game.Game.run(Game.java:106) at java.lang.Thread.run(Unknown Source) Here is my renderMob mehtod: public void renderMob(int xp,int yp,Sprite sprite,int flip) { xp -= xOffset; yp-=yOffset; for(int y = 0; y<32; y++) { int ya = y + yp; int ys = y; if(flip == 2||flip == 3)ys = 31-y; for(int x = 0; x<32; x++) { int xa = x + xp; int xs = x; if(flip == 1||flip == 3)xs = 31-x; if(xa < -32 || xa >=width || ya<0||ya>=height) break; if(xa<0) xa =0; int col = sprite.pixels[xs+ys*32]; if(col!= 0x000000) pixels[xa+ya*width] = col; } } } My spider class which determines the sprite and where I control movement, also rendering the spider onto the screen, when I increment ya to move the sprite, I get the crash, but without ya++, it runs flawlessly with a spider sprite on screen: package com.apcompsci.game.entity.mob; import com.apcompsci.game.entity.mob.Mob.Direction; import com.apcompsci.game.graphics.Screen; import com.apcompsci.game.graphics.Sprite; import com.apcompsci.game.level.Level; public class spider extends Mob{ Direction dir; private Sprite sprite; private boolean walking; public spider(int x, int y) { this.x = x <<4; this.y = y <<4; sprite = sprite.spider_forward; } public void update() { int xa = 0, ya = 0; ya++; if(ya<0) { sprite = sprite.spider_forward; dir = Direction.UP; } if(ya>0) { sprite = sprite.spider_back; dir = Direction.DOWN; } if(xa<0) { sprite = sprite.spider_side; dir = Direction.LEFT; } if(xa>0) { sprite = sprite.spider_side; dir = Direction.LEFT; } if(xa!= 0 || ya!= 0) { System.out.println("true"); move(xa,ya); walking = true; } else{ walking = false; } } public void render(Screen screen) { screen.renderMob(x, y, sprite, 0); } } This is th mob class that contains the move() method that is called in the spider class above. This move method calls the collision method. tile and sprite comes up null in the debugger: package com.apcompsci.game.entity.mob; import java.util.ArrayList; import java.util.List; import com.apcompsci.game.entity.Entity; import com.apcompsci.game.entity.projectile.DemiGodProjectile; import com.apcompsci.game.entity.projectile.Projectile; import com.apcompsci.game.graphics.Sprite; public class Mob extends Entity{ protected Sprite sprite; protected boolean moving = false; protected enum Direction { UP,DOWN,LEFT,RIGHT } protected Direction dir; public void move(int xa,int ya) { if(xa != 0 && ya != 0) { move(xa,0); move(0,ya); return; } if(xa>0) dir = Direction.RIGHT; if(xa<0) dir = Direction.LEFT; if(ya>0)dir = Direction.DOWN; if(ya<0)dir = Direction.UP; if(!collision(xa,ya)){ x+= xa; y+=ya; } } public void update() { } public void shoot(int x, int y, double dir) { //dir = Math.toDegrees(dir); Projectile p = new DemiGodProjectile(x, y,dir); level.addProjectile(p); } public boolean collision(int xa,int ya) { boolean solid = false; for(int c = 0; c<4; c++) { int xt = ((x+xa) + c % 2 * 14 - 8 )/16; int yt = ((y+ya) + c / 2 * 12 +3 )/16; if(level.getTile(xt, yt).solid()) solid = true; } return solid; } public void render() { } } Finally, here is the method in which i call the add() method for the spider to add it to the level: protected void loadLevel(String path) { try{ BufferedImage image = ImageIO.read(SpawnLevel.class.getResource(path)); int w = width =image.getWidth(); int h = height = image.getHeight(); tiles = new int[w*h]; image.getRGB(0, 0, w,h, tiles,0, w); } catch(IOException e){ e.printStackTrace(); System.out.println("Exception! Could not load level file!"); } add(new spider(20,45)); } I don't think i need to include the level class but just in case, I have provided a gistHub link for better context. It contains all of the full classes listed above , plus my entity class and maybe another. Thanks for the help if you decide to do so, much appreciated! Also, please tell me if i'm in the wrong section of stackeoverflow, i figured that since this is the gamign section that it belonged but debugging code normally goes into the general section.

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  • Using ant to register plugins and deploy metadata xmls

    - by Gaurav.gg.goyal
    Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times","serif"; mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:"Times New Roman";} Ant can be used to register plugins directly to MDS. Following is the ant script to register plugin zip:<target name="register_plugin" depends="compile_package">    <echo> Register Plugin : ${plugin.base}/${project.name}.zip</echo>    <java classname="oracle.iam.platformservice.utils.PluginUtility" classpathref="classpath" fork="true">        <sysproperty key="XL.HomeDir" value="${oim.home.server}"/>        <sysproperty key="OIM.Username" value="${oim.username}"/>            <sysproperty key="OIM.UserPassword" value="${oim.password}"/>        <sysproperty key="ServerURL" value="${oim.url}"/>       <sysproperty key="PluginZipToRegister" value="${plugin.base}/${project.name}.zip"/>        <sysproperty key="java.security.auth.login.config" value="${oim.home}\designconsole\config\authwl.conf"/>        <arg value="REGISTER"/>        <redirector error="redirector.err" errorproperty="redirector.err" output="redirector.out" outputproperty="redirector.out"/>    </java>    <copy file="${plugin.base}/${project.name}.zip" todir="${oim.home.server}\plugins"/></target> This script requires following properties: plugin.base project.name oim.home.server oim.username oim.password You can either define a properties file for these properties or define them directly in build.xml. Build.properties will look like: # Set the OIM home here oim.home=C:/Oracle/Middleware02/Oracle_IDM # Set the weblogic home here wls.home=C:/Oracle/Middleware02/wlserver_10.3 OIM.ServerName=oim_server1 # e.g.: used in building the jar and zip files #Note : no spaces in the project name project.name=ScheduledTask_Sample #Set the oim username oim.username=xelsysadm # set the oim password oim.password=Welcome1 WL.Username=weblogic WL.UserPassword=weblogic1 #set the oim URL here oim.url=t3://localhost:14000 WL.url=t3://localhost:7001 #Location from where the metadata files are pickedup for MDS import metadata.location=C:/Project /src/ScheduledTask_Sample /metaxml/ Following is the ANT script to import metadata xml: <target name="ImportMetadata">                 <echo> Preparing for MDS xmls Upload...</echo>                 <copy file="${oim.home}/bin/weblogic.properties" todir="."/>                 <replaceregexp file="weblogic.properties" match="wls_servername=(.*)" replace="wls_servername=${OIM.ServerName}" byline="true"/>                <replaceregexp file="weblogic.properties" match="application_name=(.*)" replace="application_name=OIMMetadata" byline="true"/>                <replaceregexp file="weblogic.properties" match="metadata_from_loc=(.*)" replace="metadata_from_loc=${metadata.location}" byline="true"/>                <copy file="${oim.home}/bin/weblogicImportMetadata.py" todir="."/>                 <replace file="weblogicImportMetadata.py">                      <replacefilter token="connect()" value="connect('${wl.username}', '${wl.password}', '${wl.url}')"/>                </replace>                 <echo> Importing metadata xmls to MDS... </echo>                 <exec dir="." vmlauncher="false" executable="${oim.home}/../common/bin/wlst.sh">                         <arg value="-loadProperties"/>                         <arg value="weblogic.properties"/>                         <arg value="weblogicImportMetadata.py"/>                         <redirector output="deletemd_redirector.out" logerror="true" outputproperty="deletemd_redirector.out" />                </exec>                 <echo>${deletemd_redirector.out}</echo>                 <echo>${deletemd_redirector.out}</echo>                 <echo>Completed metadata xmls import to MDS</echo> </target>

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  • Server Error in '/' Application. - The resource cannot be Found.

    - by Bigced_21
    I am new to ASP.NET MVC 2. I do not understand why I am receiving this error. Is there something missing that i'm not referencing correctly. I'm trying to create a simple jquery autocomplete online search textbox and view the details of the person that i select using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Mvc; using System.Web.Mvc.Ajax; using DOC_Kools.Models; namespace DOC_Kools.Controllers { public class HomeController : Controller { private KOOLSEntities _dataModel = new KOOLSEntities(); // // GET: /Home/ public ActionResult Index() { ViewData["Message"] = "Welcome to ASP.NET MVC!"; return View(); } // // GET: /Home/ public ActionResult getAjaxResult(string q) { string searchResult = string.Empty; var offenders = (from o in _dataModel.OffenderSet where o.LastName.Contains(q) orderby o.LastName select o).Take(10); foreach (Offender o in offenders) { searchResult += string.Format("{0}|r\n", o.LastName); } return Content(searchResult); } [AcceptVerbs(HttpVerbs.Post)] public ActionResult Search(string searchTerm) { if (searchTerm == string.Empty) { return View(); } else { // if the search contains only one result return detials // otherwise a list var offenders = from o in _dataModel.OffenderSet where o.LastName.Contains(searchTerm) orderby o.LastName select o; if (offenders.Count() == 0) { return View("not found"); } if (offenders.Count() > 1) { return View("List", offenders); } else { return RedirectToAction("Details", new { id = offenders.First().SPN }); } } } // // GET: /Home/Details/5 public ActionResult Details(int id) { return View(); } // // GET: /Home/Create public ActionResult Create() { return View(); } // // POST: /Home/Create [AcceptVerbs(HttpVerbs.Post)] public ActionResult Create(FormCollection collection) { try { // TODO: Add insert logic here return RedirectToAction("Index"); } catch { return View(); } } // // GET: /Home/Edit/5 public ActionResult Edit(int id) { return View(); } // // POST: /Home/Edit/5 [AcceptVerbs(HttpVerbs.Post)] public ActionResult Edit(int id, FormCollection collection) { try { // TODO: Add update logic here return RedirectToAction("Index"); } catch { return View(); } } public ActionResult About() { return View(); } } } using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Mvc; using System.Web.Routing; namespace DOC_Kools { // Note: For instructions on enabling IIS6 or IIS7 classic mode, // visit http://go.microsoft.com/?LinkId=9394801 public class MvcApplication : System.Web.HttpApplication { public static void RegisterRoutes(RouteCollection routes) { routes.IgnoreRoute("{resource}.axd/{*pathInfo}"); routes.MapRoute( "Default", // Route name "{controller}/{action}/{id}", // URL with parameters new { controller = "Home", action = "Index", id = "" } // Parameter defaults ); routes.MapRoute( "OffenderSearch", "Offenders/Search/{searchTerm}", new { controller = "Home", action = "Index", searchTerm = "" } ); routes.MapRoute( "OffenderAjaxSearch", "Offenders/getAjaxResult/", new { controller = "Home", action = "getAjaxResult" } ); } protected void Application_Start() { AreaRegistration.RegisterAllAreas(); RegisterRoutes(RouteTable.Routes); } } } <%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<DOC_Kools.Models.Offender>" %> $(document).ready(function() { $("#searchTerm").autocomplete("/Offenders/getAjaxResult/"); }); Home Page <%= Html.Encode(ViewData["Message"]) % <h2>Look for an offender</h2> <form action="/Offenders/Search" method="post" id="searchForm"> <input type="text" name="searchTerm" id="searchTerm" value="" size="10" maxlength="30" /> <input type="submit" value="Search" /> </form> <br /> what do i have to do in order for the textbox search to display on the index page? What else do i have to do for the autocomplete to function correctly. i have the autocomplete.js & jquery.js added to the index.aspx view Any help will be appreciated so that i can get this working. Thanks!

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  • Exception thrown while accessing HTML DataTable in backing bean

    - by Denzil
    Hi folks, I am building a simple application in JSF with the CrUD functionality. I am trying to implement edit functionality using the tomahawk component .I am unable to retrieve the selected row in my backing bean. Here's my JSP file snip: <t:dataTable id="data" binding="#{selectOneRowList.dataTable}" styleClass="scrollerTable" headerClass="standardTable_Header" footerClass="standardTable_Header" rowClasses="standardTable_Row1,standardTable_Row2" columnClasses="standardTable_Column,standardTable_ColumnCentered,standardTable_Column" var="car" value="#{selectOneRowList.list}" sortColumn="#{selectOneRowList.sortColumn}" sortAscending="#{selectOneRowList.sortAscending}" preserveDataModel="false" preserveSort="true" preserveRowStates="true" rows="10" > <h:column> <f:facet name="header"> <h:outputText value="Select"/> </f:facet> <t:selectOneRow groupName="selection" id="hugo" value="#{selectOneRowList.selectedRowIndex}" onchange="submit();" immediate="true" valueChangeListener="#{selectOneRowList.processRowSelection}"/> </h:column> <h:column> <f:facet name="header"> </f:facet> <h:outputText value="#{car.id}" /> </h:column> <h:column> <f:facet name="header"> <h:outputText value="Cars" /> </f:facet> <h:outputText value="#{car.type}" /> </h:column> <t:column sortable="true"> <f:facet name="header"> <h:outputText value="Color" /> </f:facet> <h:outputText value="#{car.color}" /> </t:column> </t:dataTable> Here's my backing bean SelectOneRowList.java : public void editCar(ActionEvent event) { System.out.println("Row number ## " + _selectedRowIndex.toString() + " selected!"); System.out.println("Datatable ::"+ dataTable); System.out.println("Row Count ::" + dataTable.getRowCount()); dataItem = (SimpleCar) getDataTable().getRowData(); //selectedCar = (SimpleCar) _list.get(Integer.parseInt(_selectedRowIndex.toString())); selectedCar = (SimpleCar) dataTable.getRowData(); System.out.println(dataTable.getRowData()); } My DTO{Data Transfer Object} which is SimpleCar.java contains the variables ID, type, color and their respective setters/getters. The dataItem variable is of type "SimpleCar". The dataTable is of type HTMLDataTable. I am able to get the the first 3 SOP's but the 4th SOP isn't printed. I receive the following exception on the server : javax.faces.el.EvaluationException: Exception while invoking expression #{selectOneRowList.editCar} org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:156) javax.faces.component.UICommand.broadcast(UICommand.java:89) javax.faces.component.UIViewRoot._broadcastForPhase(UIViewRoot.java:97) javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:171) org.apache.myfaces.lifecycle.InvokeApplicationExecutor.execute(InvokeApplicationExecutor.java:32) org.apache.myfaces.lifecycle.LifecycleImpl.executePhase(LifecycleImpl.java:95) org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:70) javax.faces.webapp.FacesServlet.service(FacesServlet.java:139) org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:341) On click of the edit button the editCar method in my backing bean is invoked. I need to get the data of the selected row in my backing bean. Why is the exception occurring ? The above example is taken from the tomawhawk examples WAR distributed on the website. I have gone through many links including the ones on BalusC but none of them have helped. Regards,

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  • Simple GET operation with JSON data in ADF Mobile

    - by PadmajaBhat
    Usecase: This sample uses a RESTful service which contains a GET method that fetches employee details for an employee with given employee ID along with other methods. The data is fetched in JSON format. This RESTful service is then invoked via ADF Mobile and the JSON data thus obtained is parsed and rendered in mobile in a table. Prerequisite: Download JDev build JDEVADF_11.1.2.4.0_GENERIC_130421.1600.6436.1 or higher with mobile support.  Steps: Run EmployeeService.java in JSONService.zip. This is a simple service with a method, getEmpById(id) that takes employee ID as parameter and produces employee details in JSON format. Copy the target URL generated on running this service. The target URL will be as shown below: http://127.0.0.1:7101/JSONService-Project1-context-root/jersey/project1 Now, let us invoke this service in our mobile application. For this, create an ADF Mobile application.  Name the application JSON_SearchByEmpID and finish the wizard. Now, let us create a connection to our service. To do this, we create a URL Connection. Invoke new gallery wizard on ApplicationController project.  Select URL Connection option. In the Create URL Connection window, enter connection name as ‘conn’. For URL endpoint, supply the URL you copied earlier on running the service. Remember to use your system IP instead of localhost. Test the connection and click OK. At this point, a connection to the REST service has been created. Since JSON data is not supported directly in WSDC wizard, we need to invoke the operation through Java code using RestServiceAdapter. For this, in the ApplicationController project, create a Java class called ‘EmployeeDC’. We will be creating DC from this class. Add the following code to the newly created class to invoke the getEmpById method. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 public Employee fetchEmpDetails(){ RestServiceAdapter restServiceAdapter = Model.createRestServiceAdapter(); restServiceAdapter.clearRequestProperties(); restServiceAdapter.setConnectionName("conn"); //URL connection created with this name restServiceAdapter.setRequestType(RestServiceAdapter.REQUEST_TYPE_GET); restServiceAdapter.addRequestProperty("Content-Type", "application/json"); restServiceAdapter.addRequestProperty("Accept", "application/json; charset=UTF-8"); restServiceAdapter.setRetryLimit(0); restServiceAdapter.setRequestURI("/getById/"+inputEmpID); String response = ""; JSONBeanSerializationHelper jsonHelper = new JSONBeanSerializationHelper(); try { response = restServiceAdapter.send(""); //Invoke the GET operation System.out.println("Response received!"); Employee responseObject = (Employee) jsonHelper.fromJSON(Employee.class, response); return responseObject; } catch (Exception e) { } return null; } Here, in lines 2 to 9, we create the RestServiceAdapter and set various properties required to invoke the web service. At line 4, we are pointing to the connection ‘conn’ created previously. Since we want to invoke getEmpById method of the service, which is defined by the URL http://IP:7101/REST_Sanity_JSON-Project1-context-root/resources/project1/getById/{id} we are updating the request URI to point to this URI at line 9. inputEmpID is a variable that will hold the value input by the user for employee ID. This we will be creating in a while. As the method we are invoking is a GET operation and consumes json data, these properties are being set in lines 5 through 7. Finally, we are sending the request in line 13. In line 15, we use jsonHelper.fromJSON to convert received JSON data to a Java object. The required Java objects' structure is defined in class Employee.java whose structure is provided later. Since the response from our service is a simple response consisting of attributes like employee Id, name, design etc, we will just return this parsed response (line 16) and use it to create DC. As mentioned previously, we would like the user to input the employee ID for which he/she wants to perform search. So, in the same class, define a variable inputEmpID which will hold the value input by the user. Generate accessors for this variable. Lastly, we need to create Employee class. Employee class will define how we want to structure the JSON object received from the service. To design the Employee class, run the services’ method in the browser or via analyzer using path parameter as 1. This will give you the output JSON structure. Ours is a simple service that returns a JSONObject with a set of data. Hence, Employee class will just contain this set of data defined with the proper data types. Create Employee.java in the same project as EmployeeDC.java and write the below code: package application; import oracle.adfmf.java.beans.PropertyChangeListener; import oracle.adfmf.java.beans.PropertyChangeSupport; public class Employee { private String dept; private String desig; private int id; private String name; private int salary; private PropertyChangeSupport propertyChangeSupport = new PropertyChangeSupport(this); public void setDept(String dept) {         String oldDept = this.dept; this.dept = dept; propertyChangeSupport.firePropertyChange("dept", oldDept, dept); } public String getDept() { return dept; } public void setDesig(String desig) { String oldDesig = this.desig; this.desig = desig; propertyChangeSupport.firePropertyChange("desig", oldDesig, desig); } public String getDesig() { return desig; } public void setId(int id) { int oldId = this.id; this.id = id; propertyChangeSupport.firePropertyChange("id", oldId, id); } public int getId() { return id; } public void setName(String name) { String oldName = this.name; this.name = name; propertyChangeSupport.firePropertyChange("name", oldName, name); } public String getName() { return name; } public void setSalary(int salary) { int oldSalary = this.salary; this.salary = salary; propertyChangeSupport.firePropertyChange("salary", oldSalary, salary); } public int getSalary() { return salary; } public void addPropertyChangeListener(PropertyChangeListener l) { propertyChangeSupport.addPropertyChangeListener(l); } public void removePropertyChangeListener(PropertyChangeListener l) { propertyChangeSupport.removePropertyChangeListener(l);     } } Now, let us create a DC out of EmployeeDC.java.  DC as shown below is created. Now, you can design the mobile page as usual and invoke the operation of the service. To design the page, go to ViewController project and locate adfmf-feature.xml. Create a new feature called ‘SearchFeature’ by clicking the plus icon. Go the content tab and add an amx page. Call it SearchPage.amx. Call it SearchPage.amx. Remove primary and secondary buttons as we don’t need them and rename the header. Drag and drop inputEmpID from the DC palette onto Panel Page in the structure pane as input text with label. Next, drop fetchEmpDetails method as an ADF button. For a change, let us display the output in a table component instead of the usual form. However, you will notice that if you drag and drop Employee onto the structure pane, there is no option for ADF Mobile Table. Hence, we will need to create the table on our own. To do this, let us first drop Employee as an ADF Read -Only form. This step is needed to get the required bindings. We will be deleting this form in a while. Now, from the Component palette, search for ‘Table Layout’. Drag and drop this below the command button.  Within the tablelayout, insert ‘Row Layout’ and ‘Cell Format’ components. Final table structure should be as shown below. Here, we have also defined some inline styling to render the UI in a nice manner. <amx:tableLayout id="tl1" borderWidth="2" halign="center" inlineStyle="vertical-align:middle;" width="100%" cellPadding="10"> <amx:rowLayout id="rl1" > <amx:cellFormat id="cf1" width="30%"> <amx:outputText value="#{bindings.dept.hints.label}" id="ot7" inlineStyle="color:rgb(0,148,231);"/> </amx:cellFormat> <amx:cellFormat id="cf2"> <amx:outputText value="#{bindings.dept.inputValue}" id="ot8" /> </amx:cellFormat> </amx:rowLayout> <amx:rowLayout id="rl2"> <amx:cellFormat id="cf3" width="30%"> <amx:outputText value="#{bindings.desig.hints.label}" id="ot9" inlineStyle="color:rgb(0,148,231);"/> </amx:cellFormat> <amx:cellFormat id="cf4" > <amx:outputText value="#{bindings.desig.inputValue}" id="ot10"/> </amx:cellFormat> </amx:rowLayout> <amx:rowLayout id="rl3"> <amx:cellFormat id="cf5" width="30%"> <amx:outputText value="#{bindings.id.hints.label}" id="ot11" inlineStyle="color:rgb(0,148,231);"/> </amx:cellFormat> <amx:cellFormat id="cf6" > <amx:outputText value="#{bindings.id.inputValue}" id="ot12"/> </amx:cellFormat> </amx:rowLayout> <amx:rowLayout id="rl4"> <amx:cellFormat id="cf7" width="30%"> <amx:outputText value="#{bindings.name.hints.label}" id="ot13" inlineStyle="color:rgb(0,148,231);"/> </amx:cellFormat> <amx:cellFormat id="cf8"> <amx:outputText value="#{bindings.name.inputValue}" id="ot14"/> </amx:cellFormat> </amx:rowLayout> <amx:rowLayout id="rl5"> <amx:cellFormat id="cf9" width="30%"> <amx:outputText value="#{bindings.salary.hints.label}" id="ot15" inlineStyle="color:rgb(0,148,231);"/> </amx:cellFormat> <amx:cellFormat id="cf10"> <amx:outputText value="#{bindings.salary.inputValue}" id="ot16"/> </amx:cellFormat> </amx:rowLayout>     </amx:tableLayout> The values used in the output text of the table come from the bindings obtained from the ADF Form created earlier. As we have used the bindings and don’t need the form anymore, let us delete the form.  One last thing before we deploy. When user changes employee ID, we want to clear the table contents. For this we associate a value change listener with the input text box. Click New in the resulting dialog to create a managed bean. Next, we create a method within the managed bean. For this, click on the New button associated with method. Call the method ‘empIDChange’. Open myClass.java and write the below code in empIDChange(). public void empIDChange(ValueChangeEvent valueChangeEvent) { // Add event code here... //Resetting the values to blank values when employee id changes AdfELContext adfELContext = AdfmfJavaUtilities.getAdfELContext(); ValueExpression ve = AdfmfJavaUtilities.getValueExpression("#{bindings.dept.inputValue}", String.class); ve.setValue(adfELContext, ""); ve = AdfmfJavaUtilities.getValueExpression("#{bindings.desig.inputValue}", String.class); ve.setValue(adfELContext, ""); ve = AdfmfJavaUtilities.getValueExpression("#{bindings.id.inputValue}", int.class); ve.setValue(adfELContext, ""); ve = AdfmfJavaUtilities.getValueExpression("#{bindings.name.inputValue}", String.class); ve.setValue(adfELContext, ""); ve = AdfmfJavaUtilities.getValueExpression("#{bindings.salary.inputValue}", int.class); ve.setValue(adfELContext, ""); } That’s it. Deploy the application to android emulator or device. Some snippets from the app.

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  • Getting ClassCastException with JSF 1.2 Custom Component and BEA 10.3

    - by Tobi
    Im getting a ClassCastException if i use Attributes in my Custom Headline Tag. Without Attributes rendering works fine. Calling <t:headline value="test" /> gives a ClassCastException even before a Method in my HeadlineComponent or HeadlineTag-Class is called. <t:headline /> works fine. I'm using MyFaces-1.2, on BEA 10.3 default.jsp <%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%> <%@ taglib prefix="f" uri="http://java.sun.com/jsf/core"%> <%@ taglib prefix="h" uri="http://java.sun.com/jsf/html"%> <%@ taglib prefix="t" uri="http://www.tobi.de/taglibrary" %> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>Tobi Test</title> </head> <body> <f:view> <t:headline value="test" /> </f:view> </body> </html> HeadlineComponent.java package tobi.web.component.headline; import java.io.IOException; import javax.el.ValueExpression; import javax.faces.component.UIOutput; import javax.faces.context.FacesContext; import javax.faces.context.ResponseWriter; public class HeadlineComponent extends UIOutput { private String value; private Integer size; @Override public Object saveState(FacesContext context) { Object values[] = new Object[3]; values[0] = super.saveState(context); values[1] = value; values[2] = size; return ((Object)(values)); } @Override public void restoreState(FacesContext context, Object state) { Object values[] = (Object[])state; super.restoreState(context, values[0]); value = (String)values[1]; size = (Integer)values[2]; } @Override public void encodeBegin(FacesContext context) throws IOException { // Wenn keine Groesse angegeben wurde default 3 String htmlTag = (size == null) ? "h3" : "h"+getSize().toString(); ResponseWriter writer = context.getResponseWriter(); writer.startElement(htmlTag, this); if(value == null) { writer.write(""); } else { writer.write(value); } writer.endElement(htmlTag); writer.flush(); } public String getValue() { if(value != null) { return value; } ValueExpression ve = getValueExpression("value"); if(ve != null) { return (String)ve.getValue(getFacesContext().getELContext()); } return null; } public void setValue(String value) { this.value = value; } public Integer getSize() { if(size != null) { return size; } ValueExpression ve = getValueExpression("size"); if(ve != null) { return (Integer)ve.getValue(getFacesContext().getELContext()); } return null; } public void setSize(Integer size) { if(size>6) size = 6; if(size<1) size = 1; this.size = size; } } HeadlineTag.java package tobi.web.component.headline; import javax.el.ValueExpression; import javax.faces.component.UIComponent; import javax.faces.webapp.UIComponentELTag; public class HeadlineTag extends UIComponentELTag { private ValueExpression value; private ValueExpression size; @Override public String getComponentType() { return "tobi.headline"; } @Override public String getRendererType() { // null, da wir hier keinen eigenen Render benutzen return null; } protected void setProperties(UIComponent component) { super.setProperties(component); HeadlineComponent headline = (HeadlineComponent)component; if(value != null) { if(value.isLiteralText()) { headline.getAttributes().put("value", value.getExpressionString()); } else { headline.setValueExpression("value", value); } } if(size != null) { if(size.isLiteralText()) { headline.getAttributes().put("size", size.getExpressionString()); } else { headline.setValueExpression("size", size); } } } @Override public void release() { super.release(); this.value = null; this.size = null; } public ValueExpression getValue() { return value; } public void setValue(ValueExpression value) { this.value = value; } public ValueExpression getSize() { return size; } public void setSize(ValueExpression size) { this.size = size; } } taglibrary.tld <?xml version="1.0" encoding="UTF-8" ?> <taglib xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-jsptaglibrary_2_1.xsd" version="2.1"> <description>Tobi Webclient Taglibrary</description> <tlib-version>1.0</tlib-version> <short-name>tobi-taglibrary</short-name> <uri>http://www.tobi.de/taglibrary</uri> <tag> <description>Eine Überschrift im HTML-Stil</description> <name>headline</name> <tag-class>tobi.web.component.headline.HeadlineTag</tag-class> <body-content>empty</body-content> <attribute> <description>Der Text der Überschrift</description> <name>value</name> <required>false</required> <rtexprvalue>true</rtexprvalue> </attribute> <attribute> <description>Die Größe der Überschrift nach HTML (h1 - h6)</description> <name>size</name> <required>false</required> <rtexprvalue>true</rtexprvalue> </attribute> </tag> </taglib> faces-config.xml <?xml version="1.0" encoding="UTF-8"?> <faces-config xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-facesconfig_1_2.xsd" version="1.2"> <component> <description>Erzeugt eine Überschrift nach HTML-Stil</description> <display-name>headline</display-name> <component-type>tobi.headline</component-type> <component-class>tobi.web.component.headline.HeadlineComponent</component-class> <attribute> <attribute-name>value</attribute-name> <attribute-class>java.lang.String</attribute-class> </attribute> <attribute> <attribute-name>size</attribute-name> <attribute-class>java.lang.Integer</attribute-class> <default-value>3</default-value> </attribute> </component> </faces-config>

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  • Ant: how do I disable all non-error messages?

    - by java.is.for.desktop
    Hello, everyone! When running ant from command line on my Netbeans projects, I get the following messages hundreds of times, which is very annoying: Trying to override old definition of task http://www.netbeans.org/ns/j2se-project/3:javac Trying to override old definition of task http://www.netbeans.org/ns/j2se-project/3:depend Trying to override old definition of task http://www.netbeans.org/ns/j2se-project/1:nbjpdastart Trying to override old definition of task http://www.netbeans.org/ns/j2se-project/3:debug Trying to override old definition of task http://www.netbeans.org/ns/j2se-project/1:java Depending of the kind of the project, there can be much more of such lines. And this is with the -q or -quiet option. Any idea, how to disable this message? Thank you!

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  • Why keylistener is not working here?

    - by swift
    i have implemented keylistener interface and implemented all the needed methods but when i press the key nothing happens here, why? package swing; import java.awt.Color; import java.awt.Dimension; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.GridLayout; import java.awt.Point; import java.awt.RenderingHints; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.KeyEvent; import java.awt.event.KeyListener; import java.awt.event.MouseEvent; import java.awt.event.MouseListener; import java.awt.event.MouseMotionListener; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import java.awt.image.BufferedImage; import javax.swing.BorderFactory; import javax.swing.BoxLayout; import javax.swing.ImageIcon; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLayeredPane; import javax.swing.JPanel; import javax.swing.JTextArea; class Paper extends JPanel implements MouseListener,MouseMotionListener,ActionListener,KeyListener { static BufferedImage image; String shape; Color color=Color.black; Point start; Point end; Point mp; Button elipse=new Button("elipse"); int x[]=new int[50]; int y[]=new int[50]; Button rectangle=new Button("rect"); Button line=new Button("line"); Button roundrect=new Button("roundrect"); Button polygon=new Button("poly"); Button text=new Button("text"); ImageIcon erasericon=new ImageIcon("images/eraser.gif"); JButton erase=new JButton(erasericon); JButton[] colourbutton=new JButton[9]; String selected; Point label; String key; int ex,ey;//eraser //DatagramSocket dataSocket; JButton button = new JButton("test"); JLayeredPane layerpane; Point p=new Point(); int w,h; public Paper() { JFrame frame=new JFrame("Whiteboard"); frame.setVisible(true); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setSize(640, 480); frame.setBackground(Color.black); layerpane=frame.getLayeredPane(); setWidth(539,444); setBounds(69,0,555,444); layerpane.add(this,new Integer(2)); layerpane.add(this.addButtons(),new Integer(0)); setLayout(null); setOpaque(false); addMouseListener(this); addMouseMotionListener(this); setFocusable(true); addKeyListener(this); System.out.println(isFocusable()); setBorder(BorderFactory.createLineBorder(Color.black)); } public void paintComponent(Graphics g) { try { super.paintComponent(g); g.drawImage(image, 0, 0, this); Graphics2D g2 = (Graphics2D)g; if(color!=null) g2.setPaint(color); if(start!=null && end!=null) { if(selected==("elipse")) g2.drawOval(start.x, start.y,(end.x-start.x),(end.y-start.y)); else if(selected==("rect")) g2.drawRect(start.x, start.y, (end.x-start.x),(end.y-start.y)); else if(selected==("rrect")) g2.drawRoundRect(start.x, start.y, (end.x-start.x),(end.y-start.y),11,11); else if(selected==("line")) g2.drawLine(start.x,start.y,end.x,end.y); else if(selected==("poly")) g2.drawPolygon(x,y,2); } } catch(Exception e) {} } //Function to draw the shape on image public void draw() { Graphics2D g2 = image.createGraphics(); g2.setPaint(color); if(start!=null && end!=null) { if(selected=="line") g2.drawLine(start.x, start.y, end.x, end.y); else if(selected=="elipse") g2.drawOval(start.x, start.y, (end.x-start.x),(end.y-start.y)); else if(selected=="rect") g2.drawRect(start.x, start.y, (end.x-start.x),(end.y-start.y)); else if(selected==("rrect")) g2.drawRoundRect(start.x, start.y, (end.x-start.x),(end.y-start.y),11,11); else if(selected==("poly")) g2.drawPolygon(x,y,2); } if(label!=null) { JTextArea textarea=new JTextArea(); if(selected==("text")) { textarea.setBounds(label.x, label.y, 50, 50); textarea.setMaximumSize(new Dimension(100,100)); textarea.setBackground(new Color(237,237,237)); add(textarea); g2.drawString("key",label.x,label.y); } } start=null; repaint(); g2.dispose(); } public void text() { System.out.println(label); } //Function which provides the erase functionality public void erase() { Graphics2D pic=(Graphics2D) image.getGraphics(); Color erasecolor=new Color(237,237,237); pic.setPaint(erasecolor); if(start!=null) pic.fillRect(start.x, start.y, 10, 10); } //To set the size of the image public void setWidth(int x,int y) { System.out.println("("+x+","+y+")"); w=x; h=y; image = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB); } //Function to add buttons into the panel, calling this function returns a panel public JPanel addButtons() { JPanel buttonpanel=new JPanel(); buttonpanel.setMaximumSize(new Dimension(70,70)); JPanel shape=new JPanel(); JPanel colourbox=new JPanel(); shape.setLayout(new GridLayout(4,2)); shape.setMaximumSize(new Dimension(70,140)); colourbox.setLayout(new GridLayout(3,3)); colourbox.setMaximumSize(new Dimension(70,70)); buttonpanel.setLayout(new BoxLayout(buttonpanel,BoxLayout.Y_AXIS)); elipse.addActionListener(this); elipse.setToolTipText("Elipse"); rectangle.addActionListener(this); rectangle.setToolTipText("Rectangle"); line.addActionListener( this); line.setToolTipText("Line"); erase.addActionListener(this); erase.setToolTipText("Eraser"); roundrect.addActionListener(this); roundrect.setToolTipText("Round rect"); polygon.addActionListener(this); polygon.setToolTipText("Polygon"); text.addActionListener(this); text.setToolTipText("Text"); shape.add(elipse); shape.add(rectangle); shape.add(line); shape.add(erase); shape.add(roundrect); shape.add(polygon); shape.add(text); buttonpanel.add(shape); for(int i=0;i<9;i++) { colourbutton[i]=new JButton(); colourbox.add(colourbutton[i]); if(i==0) colourbutton[0].setBackground(Color.black); else if(i==1) colourbutton[1].setBackground(Color.white); else if(i==2) colourbutton[2].setBackground(Color.red); else if(i==3) colourbutton[3].setBackground(Color.orange); else if(i==4) colourbutton[4].setBackground(Color.blue); else if(i==5) colourbutton[5].setBackground(Color.green); else if(i==6) colourbutton[6].setBackground(Color.pink); else if(i==7) colourbutton[7].setBackground(Color.magenta); else if(i==8) colourbutton[8].setBackground(Color.cyan); colourbutton[i].addActionListener(this); } buttonpanel.add(colourbox); buttonpanel.setBounds(0, 0, 70, 210); return buttonpanel; } public void mouseClicked(MouseEvent e) { if(selected=="text") { label=new Point(); label=e.getPoint(); draw(); } } @Override public void mouseEntered(MouseEvent arg0) { } public void mouseExited(MouseEvent arg0) { } public void mousePressed(MouseEvent e) { if(selected=="line"||selected=="erase"||selected=="text") { start=e.getPoint(); } else if(selected=="elipse"||selected=="rect"||selected=="rrect") { mp = e.getPoint(); } else if(selected=="poly") { x[0]=e.getX(); y[0]=e.getY(); } } public void mouseReleased(MouseEvent e) { if(start!=null) { if(selected=="line") { end=e.getPoint(); } else if(selected=="elipse"||selected=="rect"||selected=="rrect") { end.x = Math.max(mp.x,e.getX()); end.y = Math.max(mp.y,e.getY()); } else if(selected=="poly") { x[1]=e.getX(); y[1]=e.getY(); } draw(); } } public void mouseDragged(MouseEvent e) { if(end==null) end = new Point(); if(start==null) start = new Point(); if(selected=="line") { end=e.getPoint(); } else if(selected=="erase") { start=e.getPoint(); erase(); } else if(selected=="elipse"||selected=="rect"||selected=="rrect") { start.x = Math.min(mp.x,e.getX()); start.y = Math.min(mp.y,e.getY()); end.x = Math.max(mp.x,e.getX()); end.y = Math.max(mp.y,e.getY()); } else if(selected=="poly") { x[1]=e.getX(); y[1]=e.getY(); } repaint(); } public void mouseMoved(MouseEvent arg0) {} public void actionPerformed(ActionEvent e) { if(e.getSource()==elipse) selected="elipse"; else if(e.getSource()==line) selected="line"; else if(e.getSource()==rectangle) selected="rect"; else if(e.getSource()==erase) { selected="erase"; System.out.println(selected); erase(); } else if(e.getSource()==roundrect) selected="rrect"; else if(e.getSource()==polygon) selected="poly"; else if(e.getSource()==text) selected="text"; if(e.getSource()==colourbutton[0]) color=Color.black; else if(e.getSource()==colourbutton[1]) color=Color.white; else if(e.getSource()==colourbutton[2]) color=Color.red; else if(e.getSource()==colourbutton[3]) color=Color.orange; else if(e.getSource()==colourbutton[4]) color=Color.blue; else if(e.getSource()==colourbutton[5]) color=Color.green; else if(e.getSource()==colourbutton[6]) color=Color.pink; else if(e.getSource()==colourbutton[7]) color=Color.magenta; else if(e.getSource()==colourbutton[8]) color=Color.cyan; } @Override public void keyPressed(KeyEvent e) { System.out.println("pressed"); } @Override public void keyReleased(KeyEvent e) { System.out.println("key released"); } @Override public void keyTyped(KeyEvent e) { System.out.println("Typed"); } public static void main(String[] a) { new Paper(); } } class Button extends JButton { String name; public Button(String name) { this.name=name; } public void paintComponent(Graphics g) { super.paintComponent(g); Graphics2D g2 = (Graphics2D)g; g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); //g2.setStroke(new BasicStroke(1.2f)); if (name == "line") g.drawLine(5,5,30,30); if (name == "elipse") g.drawOval(5,7,25,20); if (name== "rect") g.drawRect(5,5,25,23); if (name== "roundrect") g.drawRoundRect(5,5,25,23,10,10); int a[]=new int[]{20,9,20,23,20}; int b[]=new int[]{9,23,25,20,9}; if (name== "poly") g.drawPolyline(a, b, 5); 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