35,618 Topics
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| | Ive been sitting in 3 hours trying to figure out whats wrong, read in my book, seen the Powerpoint and google search and now im giving up.. This is my last resort and I hope to learn how to do it.. Would appriciate the help guys. Well, here i post …  |
| | Hey all, I have a program to write where I am supposed to be able to type in an array of char in one textfield and in another textfield, I can type in a "pattern" of something, enclosed in quotation marks, and click a match pattern button, outputting where that …  |
| | Hai Friends, Iam using J2ME , i can read a text file from jar (in res folder) by using InputStream is = getClass().getResourceAsStream("help.txt"); StringBuffer sb = new StringBuffer(); try{ int chars, i = 0; while ((chars = is.read()) != -1){ sb.append((char) chars); } return sb.toString(); }catch (Exception e){} but i … |
| | i tried executing this code but it compiles with the build output as "Note: K:\tower.java uses or overrides a deprecated API. Note: Recompile with -Xlint:deprecation for details. Process completed." and the General output as "java.lang.NoSuchMethodError: main Exception in thread "main" Process completed." i executed this in JCreator and it does … |
| | String[] temp=null; String st3=new String(temp); I use this code but error message is shown. I need how to recover this error.  |
| | Hi, I just started my java class a few weeks ago, I have a question if you guys can help me. I`m learning about passing arguments, so I have this small code, it works perfect, the output is " 42 84 ", but I didn`t get it. what does it … |
| | Hello, I am, for some reason only getting 64K of data back from my local host as I test my program for being able to write a text file to a server and back. The remaining of the data is all spaces instead of char's, so that the original and …  |
| | I've got 2 JSPs. JSP1 calls JSP2 to format a table in JSP1 JSP1 calls JSP2 using this code: [CODE] <jsp:include page='<%=(String)request.getAttribute("SB_Format_Path")%>' flush="true" ></jsp:include> [/CODE] The problem is that JSP2 has access to variable XX, at runtime but JSP1 does not have access to it. I'd like to somehow be … |
| | Hello. I have 3 classes ; main.java calls gui.java [code] Gui g =new Gui(); g.createAndShowGUI(); [/code] Then I have my menu.java with the actionPerformed() I am trying to call methods of the GUI.java How can I call methods on the GUI.java to and use the methods on that instance of … |
| | Hi all, I've got a JFrame in a program, and when I click on a button, I get another JFrame created, and then select from a list. This works fine. But my problem is that when I close the second JFrame the entire program exits (both the main JFrame and … |
| | I have a drag-able JLabel that I'm trying to set that object to be above all other JLabel objects when its dragged. The only method I can find that sets the order is setComponentZOrder(Component,int)' But when I Try to use it, I get a large amount of errors printed to …  |
| | I have this error"String index out of range: 14 at java.lang.String.substring(Unknown Source)" I am unable to find the mistake in my code. A little help would be great. |
| | I'm wondering if it is possible to control certain aspects in my function. All my it does is control how an object gets placed on my gui. I'm wondering if there is a way to control [I]GridBagConstraints.fill[/I] and [I]GridBagConstraints.anchor[/I] [B][U]Function:[/U][/B] [code=java] public void gridBagControl(Component ob, JPanel p, Insets in, int … |
| | I am having trouble making use of a MouseMotionListener to make some card images be able to be dragged around the screen. What this program does is show a table of cards in a random order. The user will be able to drag any of the card images and move … |
| | 1/ Write a Java program that reads in a Name and Age (in years) of four persons and prints the name and age of the youngest person. Assume that all persons are of different age. The sample program run must look as follows: Enter the name of the person: John … |
| | I hide text inside image then i want to save the image wich contain message . The problem is when i save image with JPEG it saved but give me exception : [B]java.lang.IllegalStateException: Output has not been set! at com.sun.imageio.plugins.jpeg.JPEGImageWriter.write(JPEGImageWriter.java:312) [/B] and when i save image with any other formate … |
| | Hello everyone! I have a button on my main form that allows me to get the visitInfo Table. The data are displayed inside a JTable. What I would like to know is how do I edit or delete a row from that Jtable by the click of a save button … |
| | Folks, I'm getting the following error message from Trados Studio 2009, a computer-aided translation program. "QuickInserts will not be available. Failed to create Framework 1 plug-in filter components. Failed to create Java Virtual Machine." Some Googling suggests that the problem might be caused by not allocating enough memory to Java. … |
| | As a novice JSP (and non-programmer!) I've bee doing some customisation to a browsers driven application which provides a users with CTI functionality on their desktop. My task was to create a custom "tab" on their page, which gave a series of checkboxes, with an "Apply" button. The purpose of …  |
| | how we can resize image in jsp before uploading in database as a blob data. thank you.. |
| | How do you search for information in a file already created. Also how to add or delete existed information from same file. |
| | could anyone help me i have been trying to do this for a good 2 hours now and still can't get it to work :( i have created this class diagram for the server side of my project and i can't get the inheritance right i need to be able … |
| | [code]import java.util.*; public class array1 { public static void main(String[]args) { int[] value = new int[1000]; Scanner keyboard = new Scanner(System.in); for (int i = 0; value[i]!= -999 && i < 999; i++) { System.out.print("Enter number " + (i + 1) + ": "); value[i] = keyboard.nextInt(); if(value[i] == -999) … |
| | so im trying to make a game for school that i have to have done by friday at the max my source for the main class is [CODE]//shooter game //main class import javax.swing.*; //frame import java.awt.*; //color import java.util.*; import java.awt.event.*; public class Shooter extends JFrame implements KeyListener{ Image img; … |
| | This is what Im gonna do: In a class called UsefulMethods : a) Write a method public static int maxOfTwo( int tal1, int tal2) {} . As you can see this method will accept two integers as parameters and returns the larger of this two. [B]This one I rly need … |
| | I currently have a complete CLI program, which consists of around 12 classes. I would like to convert this program into a GUI. My weak point is using GUI when several classes are involved. My final program is going to have around 5-6 different screens. Should I incorporate the GUI … |
| | java is robust and secure what is meant by robust and why is java robust? why is java called secure? can any one please help me with these? |
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| | import java.io.*; public class duplicateArray { public static void main(String[] args) { // check the no. of args if (args.length != 3) { System.out.println("No. of args is not correct"); System.exit(0); } // open file BufferedReader in = openfile(args[0]); if (in == null) { System.exit(0); } // read file int Rows … |
| | Hi guys, am currently stuck while trying to connect an Omron V720 series RFID equipment to read and write tags. I've have it in source code on VB6 but i want to create it in Java. I am using RXTX to connect to the RFID equipment and send the codes, … |
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