32,199 Topics
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| | Hey there! How do i read 2 files, one after another and then storing it into 2 seperate array? This is the code for reading 1 file. So, how do I read 2 files? The array would be a 3x3 2D array. [CODE]File dir = new File("1A6G.pdb"); //set file String … |
 | afaik, string is immutable and string buffer is mutable. when we concatenate characters with string new string object will be created. but when we append string buffer it remains the same object. apart from these what are the key and other difference between them?. |
| | Applications like browsers, etc. are written in Java, Python, etc. But when they are installed on a system that doesn't have Java or Python installed, how does it ensure that its code runs there ? Actually, I wanted to write a browser in Java with WebKit as engine. Since the … |
| | Problem Statement The government of India has launched the UID project which aims to give a Unique Identification number to each Indian. The number is a randomly generated 16 digit number. To detect errors when typing in this number, we propose to use the last digit as a checksum. Following … |
 | How to use build tool ant as i have never used any build tool and how is it better then just compiling and running our programe using javac and java.  |
| | I have tried a few different ways to to highlight the text in a jcombobox when it receives focus but none have work. Any have a code example that could help? Some examples I have tried: [CODE] private void fromComboBoxFocusFocusGained(FocusEvent event) { JTextField field = (JTextField)fromComboBox.getEditor().getEditorComponent(); field.selectAll(); } [/CODE] [CODE] … |
| | Hi guys i have a problem with JScrollPane, Firstly i have 2 custom JPanel's i wanted to add them to a JSplitPane so i added them to a JScrollPane and then those JSplitPane but the problem is if i drag the divider in splitpane the panel doesnot scroll :'( Here … |
| | Tim sort, two way bubble sort How it Work? and Two way bubble sort how different nolmal bubble? Thank you for your help ? I doubt about it .. |
| | Hi, I have downloaded a sample jms program from the below url and try to execute it in my system.But, it shows the below error.Can any one know how to execute the Jms programs in the system. [url]http://download.oracle.com/javaee/1.4/tutorial/examples/jms/simple/src/SimpleProducer.java[/url] Error: package javax.jms does not exist [code] import javax.jms.*; ^ SimpleProducer.java:90: cannot … |
| | hello, i'm doing a project related to steganography and i need to know if there is any possible way to alter the value of red color of a pixel and keep other two(i.e green and blue) unaltered.. please help.. very much in need, regards, Pruthvi kumar |
| | Hello everyone I m using java and ms access. I want to retrieve values from database into combo box. When I m trying to do this, only first value is getting displayed in combo box insted of list of all items. can you plz help me with the code? Thanx … |
| | hye em new to java ...i have 15 days to learn it...after that i hav to pick my final year project...i hav gone through many tutorials but they are not enough....can any body hav some material to learn Java easily and quick...m using netbeans 6.7.1....n want a full command on … |
| | guys i cant hit on the rite path...i love programming and i recently decided to go with java..but some people say that go with vb.net its better than java because its more demanding while i think that what ever you do,do it way that no way is better in that … |
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| | Having homework issues again. This code compiles but when I try to execute it it gives me an "exception in thread main java.lang.nosuchmethoderror main" Can anyone help me due tomorrow....Thanx [CODE] import java.awt.*; import java.awt.event.*; import java.text.NumberFormat; // used to format currency import javax.swing.*; import javax.swing.Icon; import javax.swing.ImageIcon; import javax.swing.JButton; … |
| | how i can print something , i was write it in textarea , labele , any thing by printer alike word ? |
| | I am making an application for blackberries and wanted to make use of touch capabilities on touch capable phones. Is there a way to do this without making two separate projects (like I would in c with preprocessors that check the compiler)? An idea of what I'm trying to do … |
| | Hello guys ; I have a question in java . is it possible to great a method in java program that : if ( user press "Enter" ) do some thging I tried this simple examples , but dosn't work with me [CODE] Scannaer in = new Sccanner (System.in ) … |
| | I'm trying to create a string array, but the compiler keeps giving me an error message on the lines I assign a value to each index of the array. Here's the code: [CODE]String[] greeting = new String[4]; greeting[0] = "Why, Hello there!"; greeting[1] = "Welcome."; greeting[2] = "blah blah blah"; … |
| | class Superclass { void display() { System.out.println("Super"); } } class Sub1 extends Superclass { void display() { System.out.println("sub class1"); } } class Sub2 extends Sub1 { void display() { System.out.println("Sub class2"); } void display2() { System.out.println("Second method"); } } public class reference { public static void main(String[] args) { Superclass … |
 | Hi everyone, I'm having a little problem I'm sure someone can help me with. I'm trying to read in 10 png images and save them in an ArrayList as BufferedImage objects (I think this is the right way to go about it but if not plaease say so). Here is … |
| | I want detailed explanation about static int var; final int var; static final int var; Please explain it in the memory implementation level. If there is any mistake in these please explain. __________________ |
| | Hello everyone, I am a semi-amateur web designer/programmer, however I am confused with the designing/coding of tumblr blogs, could someone help me code it. I want a two column design, one side for content with a header, the width of the content/ header will be 500px There will be a … |
| | Hello Friends, I was reading about the orthogonality and it's advantages. Then heard something like "Java is an Orthogonal Language". Can anyone explain me what do we mean by a particular programing language being orthogonal? If I am using Java for development of my application, does it imply that my … |
| | ah i am I.T 2nd yr student making my project in core java.Can any one tell how to make event in mind fiddler game (e.g kbc). can any one give me codification in making my project get started.plzzzz results needed... |
| | Hi ALL! I need a suggestion/idea how to create a 3D Tag Cloud in Java (exactly like shown here: [URL="http://www.adesblog.com/2008/08/27/wp-cumulus-plugin/"]http://www.adesblog.com/2008/08/27/wp-cumulus-plugin/[/URL]) , could you help, please? |
| | My program has 8 JButtons and 1 JTextField. Each button should change the text in the text field to something different. I started out having an action listener for each button but i would like to link all the buttons to just 1 action listener and have it recognise which … |
| | Please suggest me some projects in java for my last year project work. |
 | Hello i will like to have an explanation to this task: Make a midlet (called "NetworkSettings") that has List (IMPLICIT type called "mainList") as its main view. "mainList" contains following items: "Encryption", "Basic data" and "Summary" (actually items will describe views). When user selects one of those items from "mainList" … |
| | Hey.. i'm making a java program with derby databse usin netbeans.. the problem is that when i crate table usin a sql query,netbeans automatically sort them by name..how can i let netbeans sort them by date of creation so i can switch between tables in order of creation??... thx for … |
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