What is the difference between Java Build Path - Add External JARs Button and Add Variable Button Functionality,
Why its required. Please explain in detail.
Hello guys,
I am looking for a hosting solution for my Java/JSP web application. Do you know any servers which provide Tomcat hosting for v5 or greater and MySQL database?
Hi,
I'm using pde to run a processing app , and I got the following error :
"Verify that the java.library.path property is correctly set" .
could anyone of you tells me how to solve this problem ?
thanks in advance .
Hello There,
I am building an Android application(Hello world) In netbeans IDE. Its building properly and I can able to run in the emulator also.
But while creating the Junit test and running the test I am getting the
Java.lang.NoclassdeFound error.
How can I fix this problem.
Thanks in advance
Chandru K
Hi,
I want to be able to store the current time in millis in an oracle number field. How do I do this via a query?
select systimestamp from dual; returns the actual timestamp. Is there anyway that I can convert this into milliseconds the same way java's System.currentTimeMillis() does?
I have existing java code and need to create Design Document based on that.
For starter even if I could get all functions with input / output parameters that will help in overall proces.
Note: There is not commeted documentation on any procedures, function or classes.
Last but not least. Let me know for any good tool which will reduce time required for this phase. As currently we write every flow and related stuffs.
Hi ,
I am developing an application in cocoa which uses some java classes .I need to set the app point to
/System/Library/Frameworks/JavaVM.framework/Versions/1.5.0
instead of:
/System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK.
Is it possible to do this..
Thanks in advance
I want to build rest web services in java. can some body tell me what are the software and hardware requirements for that?
I want to know it in sense like one computer, which one database and which one server and if any other because i want to use these web services globally and want to post JSON in request and also want to get response in json for an android app. thanx, any answer would be a great help for me.
I want to receive the HTTP POST data(XML), the XML data post by other webServer(Tomcat, shttpd).
On Java I can use servlet doPost receive post data, I'm a newbie on C#, I don't know how to write it on c#.
In my asp.net page i have java script calendar,on which i want the selected date & then that date has to passed to the code behind's method. How should it be done???
Hi,
I came to know that JRE /JVM was not built using Java. The Sun JRE was built in C and IBM JRE was built in SmallTalk (First Object Oriented Language). Pleas help me with answer.
Thanks in advance.
are there any frameworks for php that follow the style of vaadin,
in vaadin you can define web forms using java with touching javascript or any client scripting in swing style ?
More or less I want to execute two functions in parallel.
One way as I see is doing through SetTimeOut function.
I have not completely gone through the ReactiveExentension, although it looks promising but may be overkill for my needs.
Is there any framework which supports parallelism ?
My use case is trivial, but I would like to know if anybody heavily needed parallelism in Java Script ?
Thanks, Biswanath.
In my project,I will get the coordinates of some points from an XML file,and create some visual components using this information ? I am planning to give these components to a Java swing frame or panel. However,The users are supposed to click on the figure(which I will construct using Graphics 2d libraries) and select two points and give a label to the points between those two points ? How can i get the clicks clicked on JFrame or JPanel(i.e events for this kind of actions) ?
i need the source code of an application that can upload and download automatically from the remote computer (FTP) using java langauge. if any body gey help or the code, kindly contact me through my mail address [email protected]. thanks
Hello,
I would like to know and get an implementation help, if possible,
about the best way to transfer very large amount to pure text from C
to Java using JNI.
thank you
how to delete the div using java script?
for details,
I have question div one by one, each question have up and down arrows, it have multiple div, and also have a save button, once i checked some question and press save button, the checked question are display blocked, others are none, In that time i click up and down arrows, it will moved included hided div also, so please help the same,
Thnks
I am looking in to learning a programming language (take a course) for image analysis and processing. Possibly Bioinformatics too. Which language should I go for? C or Java? Other languages are not an option for me. Also please explain why either of the languages is a better option for my application.
I cant seem to open a new view from an options menu item. The program keeps crashing as it applies the intent and listener to the item. I am just beginning, so please be nice.
The current view is mnfsms, and the view I am trying to open is mnfsms_settings. I am developing for 1.5.
Could someone please help me get the menu working.
The menu (called options_menu.xml):
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<item android:id="@+id/settings_button"
android:title="Settings"
android:icon="@android:drawable/ic_menu_preferences" />
<item android:id="@+id/about_button"
android:title="About"
android:icon="@android:drawable/ic_menu_myplaces" />
</menu>
The main view (called mnfsms.java):
package com.example.mnfsms;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
public class mnfsms extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
/* OnClickListener myocl = new View.OnClickListener() {
public void onClick(View v){
Intent myi = new Intent(mnfsms.this, mnfsms_settings.class);
startActivity(myi);
}
};*/
}
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.options_menu, menu);
MenuItem mi_settings = (MenuItem)findViewById(R.id.settings_button);
mi_settings.setIntent(new Intent(this, mnfsms_settings.class));
return true;
}
}
The manifest:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.mnfsms"
android:versionCode="1"
android:versionName="1.0">
<application android:icon="@drawable/icon" android:label="@string/app_name">
<activity android:name=".mnfsms" android:label="@string/main_window_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".mnfsms_settings" android:label="string/main_window_name">
</activity>
</application>
<uses-sdk android:minSdkVersion="3" />
</manifest>
The stacktrace:
01-06 15:07:58.045: ERROR/AndroidRuntime(2123): Uncaught handler: thread main exiting due to uncaught exception
01-06 15:07:58.055: ERROR/AndroidRuntime(2123): java.lang.NullPointerException
01-06 15:07:58.055: ERROR/AndroidRuntime(2123): at com.example.mnfsms.mnfsms.onCreateOptionsMenu(mnfsms.java:30)
01-06 15:07:58.055: ERROR/AndroidRuntime(2123): at android.app.Activity.onCreatePanelMenu(Activity.java:2038)
01-06 15:07:58.055: ERROR/AndroidRuntime(2123): at com.android.internal.policy.impl.PhoneWindow.preparePanel(PhoneWindow.java:421)
01-06 15:07:58.055: ERROR/AndroidRuntime(2123): at com.android.internal.policy.impl.PhoneWindow.onKeyDownPanel(PhoneWindow.java:664)
01-06 15:07:58.055: ERROR/AndroidRuntime(2123): at com.android.internal.policy.impl.PhoneWindow.onKeyDown(PhoneWindow.java:1278)
01-06 15:07:58.055: ERROR/AndroidRuntime(2123): at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchKeyEvent(PhoneWindow.java:1735)
01-06 15:07:58.055: ERROR/AndroidRuntime(2123): at android.view.ViewRoot.deliverKeyEventToViewHierarchy(ViewRoot.java:2188)
01-06 15:07:58.055: ERROR/AndroidRuntime(2123): at android.view.ViewRoot.handleFinishedEvent(ViewRoot.java:2158)
01-06 15:07:58.055: ERROR/AndroidRuntime(2123): at android.view.ViewRoot.handleMessage(ViewRoot.java:1490)
01-06 15:07:58.055: ERROR/AndroidRuntime(2123): at android.os.Handler.dispatchMessage(Handler.java:99)
01-06 15:07:58.055: ERROR/AndroidRuntime(2123): at android.os.Looper.loop(Looper.java:123)
01-06 15:07:58.055: ERROR/AndroidRuntime(2123): at android.app.ActivityThread.main(ActivityThread.java:3948)
01-06 15:07:58.055: ERROR/AndroidRuntime(2123): at java.lang.reflect.Method.invokeNative(Native Method)
01-06 15:07:58.055: ERROR/AndroidRuntime(2123): at java.lang.reflect.Method.invoke(Method.java:521)
01-06 15:07:58.055: ERROR/AndroidRuntime(2123): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:782)
01-06 15:07:58.055: ERROR/AndroidRuntime(2123): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:540)
01-06 15:07:58.055: ERROR/AndroidRuntime(2123): at dalvik.system.NativeStart.main(Native Method)
OS name: "linux" version: "2.6.32-27-generic" arch: "i386" Family: "unix"
Apache Maven 2.2.1 (r801777; 2009-08-06 12:16:01-0700)
Java version: 1.6.0_20
I am trying to use the mysql dependency in with maven in ubuntu. If I move the "mysql-connector-java-5.1.14.jar" file that maven downloaded into my $JAVA_HOME/jre/lib/ext/ folder, everything is fine when I run the jar.
I think I should be able to just specify the dependency in the pom.xml file and maven should take care of setting the classpath for the dependency jars automatically. Is this incorrect?
My pom.xml file looks like this:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.ion.common</groupId>
<artifactId>TestPreparation</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<name>TestPrep</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<configuration>
<archive>
<manifest>
<addClasspath>true</addClasspath>
<mainClass>com.ion.common.App</mainClass>
</manifest>
</archive>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<!-- JUnit testing dependency -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<!-- MySQL database driver -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.14</version>
<scope>compile</scope>
</dependency>
</dependencies>
</project>
The command "mvn package" builds it without any problems, and I can run it, but when the application attempts to access the database, this error is presented:
java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:186)
at com.ion.common.Functions.databases(Functions.java:107)
at com.ion.common.App.main(App.java:31)
The line it is failing on is:
Class.forName("com.mysql.jdbc.Driver");
Can anyone tell me what I'm doing wrong or how to fix it?
My application has a SQLite database in the asset folder. When the user launches my application, the database is created and the tables too.
This works fine with a lot of devices (Nexus One, Htc Magic, SGS, X10… and even Htc Desire HD v2.2).
My application works with all versions of Android (tested on my device (1.6, 2.2, 2.2.1 Htc Magic) and on the emulator (v1,5 until v2.3).
I have just a problem with HTC DESIRE HD v2.2.1 1.72.405.3.
The logcat:
android.database.sqlite.SQLiteException: no such table: LISTE: , while compiling: select _id from LISTE
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2833)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2854)
at android.app.ActivityThread.access$2300(ActivityThread.java:136)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2179)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:143)
at android.app.ActivityThread.main(ActivityThread.java:5068)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:521)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:858)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
at dalvik.system.NativeStart.main(Native Method)
Caused by: android.database.sqlite.SQLiteException: no such table: LISTE: , while compiling: select _id from LISTE
at android.database.sqlite.SQLiteCompiledSql.native_compile(Native Method)
at android.database.sqlite.SQLiteCompiledSql.compile(SQLiteCompiledSql.java:91)
at android.database.sqlite.SQLiteCompiledSql.(SQLiteCompiledSql.java:64)
at android.database.sqlite.SQLiteProgram.(SQLiteProgram.java:80)
at android.database.sqlite.SQLiteQuery.(SQLiteQuery.java:46)
at android.database.sqlite.SQLiteDirectCursorDriver.query(SQLiteDirectCursorDriver.java:53)
at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1417)
at android.database.sqlite.SQLiteDatabase.rawQuery(SQLiteDatabase.java:1387)
... 11 more
My application create the database but it doesn’t copy the tables of the file of the asset folder in data\data\packagename\databases\mydatabase.
My code:
public void createDataBase() throws IOException{
boolean dbExist = checkDataBase();
if(dbExist){
//do nothing - database already exist
}else{
//By calling this method and empty database will be created into the default system path
//of your application so we are gonna be able to overwrite that database with our database.
this.getReadableDatabase();
try {
copyDataBase();
} catch (IOException e) {
throw new Error("Error copying database");
}
}
}
private void copyDataBase() throws IOException{
//Open your local db as the input stream
InputStream myInput = myContext.getAssets().open(DB_NAME);
// Path to the just created empty db
String outFileName = DB_PATH + DB_NAME;
//Open the empty db as the output stream
OutputStream myOutput = new FileOutputStream(outFileName);
//transfer bytes from the inputfile to the outputfile
byte[] buffer = new byte[1024];
int length;
while ((length = myInput.read(buffer))!= -1){
if (length > 0){
myOutput.write(buffer, 0, length);
} }
//Close the streams
myOutput.flush();
myOutput.close();
myInput.close();
}
I think that the copydatabase function has a problem but I don't see.
This code works fine with all devices except the HTC DESIRE HD v2.2.1 1.72.405.3.
What problems might exist here for the HTC Desire with the given version above? How can this be remedied?