Hi..i wanted to develop a whiteboard application..i know the basics of java..but have no idea where to start from..so..i'd really appreciate if you could guide me..as in..where do i start from??
Hi..i wanted to develop a whiteboard application..i know the basics of java..but have no idea where to start from..so..i'd really appreciate if you could guide me..as in..where do i start from??..plz...i reallly need ths..
how do you get source ip, username, password, etc... of the client machine that sends a soap request? is there any of these details that one can pull for logging purposes?
I am using Java to handle the incoming SOAP requests. The service simply adds 2 numbers and is working, but I just need to get some client details.
Thanks, Lavanya
Hi
I want to retrieve a set of records from a database, do a rs.next() and then assign the result of this to a variable to pass to a method that will use this record, in the same way that I would without assigning it to a variable and passing it to a method
is there any way to do this?
I'm using JAVA (1.5)
Programming challenge: Given a set of integers [1, 2, 3, 4, 5] I would like to generate all possible k-combinations in ascending size order in Java; e.g.
[1], [2], [3], [4], [5], [1, 2], [1, 3] ... [1, 2, 3, 4, 5]
It is fairly easy to produce a recursive solution that generates all combinations and then sort them afterwards but I imagine there's a more efficient way that removes the need for the additional sort.
Hi,
is there a way to log the JdbcTemplate's DataSource connection URL in Java?
The field exists in the DataSource, but there ain't a getter to access it. Of course I could read the DataSource properties from the application context xml, but I'd like to do it the other way.
I'm trying to use XMLTask 1.16, but, unfortunately, I got error,
java.lang.UnsupportedClassVersionError: Bad version number in .class file, all the time. But if I switch back to XMLTask 1.15, it work fine. Does anyone know how to make XMLTask 1.16 work with Ant.
I am new to web development, I have to create a web application in Java using GWT that connects to a database and download a file from it. Regardless of the type of database, what does the web application need in order to create a connection with the database? E.g. an API
I have a mixed Java / C# project and use an ant script that contains a csc task to compile the dll. This works, but I get a warning
[csc] This task is deprecated and will be removed in a future version
[csc] of Ant. It is now part of the .NET Antlib:
[csc] http://ant.apache.org/antlibs/dotnet/index.html
How can I replace the csc task? I can surely create an exec task calling nant with a project.build file, but that feels completely wrong.
Hi All,
I have decided to create my own Java's Robot class in android to take screen capture..i have written the source code of the robot class by my own but the problem is here, the following line in the code is throwing compilation error..saying "The method createRobot(Robot, GraphicsDevice) in the type ComponentFactory is not applicable for the arguments (Robot, GraphicsDevice)"
peer = ((ComponentFactory)toolkit).createRobot(this, screen);
Can anyone suggest me what would be the solution....
thanks..
Im getting classnotfountexception on Class.forname("com.mysql.jdbc.Driver")
im using:
windows vista 64-bit,
Eclipse Galileo,
GWT framework
i downloaded (mysql-connector-java-5.1.6-bin), but what the exact path i should add to.
im getting this exception while im in gwt-projects, but normal projects working good,
any idea how that should be done???...thanks
Resolving an xpath that includes namepsaces in Java appears to require the use of a NamespaceContext object, mapping prefixes to namespace urls and vice versa. But I can find no mechanism for getting a NamespaceContext other than implementing it myself. This seems counter-intuitive. Is there any easy way to acquire a NamespaceContext from a document, or to create one, or failing that, to forgo prefixes altogether and specify the xpath with fully qualified names?
I've written the following if-statement in Java:
if(methodName.equals("set" + this.name) ||
isBoolean() ? methodName.equals("is" + this.name) :
methodName.equals("get" + this.name)) {
...
}
Is this a good practice to write such expressions in if, to separate state from condition? And can this expression be simplified?
I'm trying to send an email in Java but when I read the body of the email in Outlook, it's gotten rid of all my linebreaks. I'm putting \n at the ends of the lines but is there something special I need to do other than that? The receivers are always going to be using Outlook.
I found a page on microsoft.com that says there's a 'Remove line breaks' "feature" in Outlook so does this mean there's no solution to get around that other than un-checking that setting?
Thanks
Is there a way to detect the character encoding set in the terminal which is calling my Java program? In Windows I can call the "chcp" tool and parse the output.
But what about in Linux or Mac?
I heard that using shorts on 32bit system is just more inefficient than using ints. Is this the same for ints on a 64bit system?
Python recently(?) basically merged ints with long and has basically a single datatype long, right? If you are sure that your app. will only run on 64bit then, is it even conceivable (potentially a good idea) to use long for everything in Java?
Hi I have host web application which is developed using java and jsp. In client side each client give five ajax calls to the server to retrieve data from the server in every 30 seconds.
My problem is can one user who use one browser to log in to the system have multiple session at a time. Reason is when i use the tool to use monitor the firewall I can see more than 10 sessions are active for one IP. How this can happen? any comments
I know I can find out if a variable is null in Java using these techniques:
if (var==null) - too much work
try { ... } catch (NullPointerException e) { ...} - it tells me what line is throwing the exception
using the debugger - by hand, too slow
Consider this line of code:
if (this.superSL.items.get(name).getSource().compareTo(VIsualShoppingList.Source_EXTRA)==0) {
I would like to know if there's a generic way to find out programatically what variable (not just the line) is throwing the NullPointerException in a certain area of code. In the example, knowing that
Hello Guys
i just want to create a simple application that will allow a user to input a url to a rss feed and display the contents to a user.
what would be a good java library to enable me to read rss feeds?
cheers
I have a quadcore processor and I would really like to take advantage of all those cores when I'm running quick simulations. The problem is I'm only familiar with the small Linux cluster we have in the lab and I'm using Vista at home.
What sort of things do I want to look into for multicore programming with C or Java? What is the lingo that I want to google?
Thanks for the help.
I have a java main application, and I want to use log4j.
I don't want to hard code my settings, so where do I put the log4j config file so my application can find it?