32,199 Topics
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| | Hi there, I'm trying to open up a text file read info from it, alter it and write back the alterations when a user clicks on the save button, but I've hit two issues:- 1) I can't open the file for write access as I don't have permissions - can … |
| | Hello, I am trying to learn a few new things with the Java API and am wondering where to get started. As of late I've been interested more and more in trying to construct bots, and I thought a good first step would be to try and create a minesweeper …  |
| | Hi, I am writing a program where I want the user to be able to e-mail me feedback, so I have downloaded javax.mail and I'm trying to send myself an e-mail to test it out. I have Yahoo Mail Plus. Below is my code, which I tweaked from one of … |
| | Hi I am in my first programming class. Programming in JAVA. I have found it frustrating yet challenging. I am in desperate need for help when I sit here for three hours and know that it is something so simple in my source code that is wrong yet so hard … |
| | i think i've chosen the longest way to add the deletion onto my system, is there any other way which is more efficient ? and im wondering why only mPane.JTextFields are working, but the rest like lPane.JTextFields aren't working ? [CODE=JAVA] . . menuItemDelete = new JMenuItem(); menuItemDelete.setText("Delete"); menuItemDelete.setMnemonic(KeyEvent.VK_D); menuItemDelete.addActionListener( …  |
| | can i have more then one JTextArea and JTextField for one inner class (MyUndoableEditListener())? [CODE=JAVA] . . MainTabbed mPane = new MainTabbed(); . . . mPane.area.getDocument().addUndoableEditListener(new MyUndoableEditListener()); mPane.locField.getDocument().addUndoableEditListener(new MyUndoableEditListener()); mPane.dateField.getDocument().addUndoableEditListener(new MyUndoableEditListener()); mPane.ndBuddyField.getDocument().addUndoableEditListener(new MyUndoableEditListener()); mPane.depthField.getDocument().addUndoableEditListener(new MyUndoableEditListener()); mPane.firstBuddy.getDocument().addUndoableEditListener(new MyUndoableEditListener()); mPane.weightField.getDocument().addUndoableEditListener(new MyUndoableEditListener()); mPane.timeInField.getDocument().addUndoableEditListener(new MyUndoableEditListener()); mPane.tOutField.getDocument().addUndoableEditListener(new MyUndoableEditListener()); mPane.startTimeField.getDocument().addUndoableEditListener(new MyUndoableEditListener()); mPane.sTimeField.getDocument().addUndoableEditListener(new MyUndoableEditListener()); mPane.bTimeField.getDocument().addUndoableEditListener(new MyUndoableEditListener()); mPane.startField.getDocument().addUndoableEditListener(new … |
| | currently i am facing a problem for these method. when my program copying or cutting a selected text and paste to another selected area, unexpected result, it paste the selected text to all of the fields and areas of my program. is there anyway to check current selected area or … |
| | [ICODE]/* * To change this template, choose Tools | Templates * and open the template in the editor. */ /** * * @author beelzibub */ import java.awt.*; import java.awt.event.*; import javax.swing.*; class ChessBoard extends JFrame implements MouseListener, MouseMotionListener { GridLayout Board = new GridLayout(8, 8); GridChessBoard brd; int xMove, yMove, … |
| | Hello Java powers that be, I've implemented a JTable that I can add/delete rows of information to/from, but I can't actually see the changes until I do something stupid like resize the columns. I currently use a "fireTableCellUpdated(row, col);" doo-hicky in my AbstractTableModel(whenever data is changed) that I thought would … |
| | Hello! I have a little problem. I am a relatively new Java learner, and I just finished a little project for a friend. I use an IDE, called JCreator, that solves basically all of my needs without ever having to touch the command line. Since all the coding I've done … |
 | Hi all, I have searched about difference between KeyPressed and KeyTyped Events but still I'm not clear about that . One thing I have found is Keypressed is triggered first than KeyTyped . Please clarify me when these are triggered exactly . Which is appropriate to use for which purpose …  |
| | hi guys i just installled java from [url]http://www.java.com/en/download/help/download_error_codes.xml[/url] i have installed the java succesfully and now i want to write some programs in java jst to learn the language but i dont know if there is a compiler with java also i mean as there is a borland c++ compiler …  |
| | Hi, I was wondering if anyone could help me. I'm trying to find 2 unicodes so I can display the join ('bow-tie')and semi-join (like half a bow tie!) operators in java (used in relational algebra for databases). Anything I find on Google doesn't work (I just get a square!) I've … |
| | hi , i am tryin to put all the upper case alphabets in an array list and , then i want it to print on screen , but for some particular reason i am getting no result but a strange output. here is the code and result: [code] void buildAlphabet() … |
| | I'm writing a program were I have to give the user the option of starting again.........so I ask 'Would you like to add more votes (y/n)?' then I scan for the answer using the line : 'another = scan.nextLine();' The program compiles ok but when i run it. the program … |
| | I understand that i'm mingling with the gurus of this language. I'm into computer hardware and I want to start programming too(you know no knowledge is lost)I've done a little bit of C and C++, I'm new in Java programming and i want someone to guide me through in this, … |
| | Hello... I need to add a special character to a string as follows.. String ok = "I am the man"+specialChar; However, when I print "ok" later,without taking substring, I just want to see "I am the man " with the special character but will be invisible and will have just … |
| | please help me. I need help from you all. I enable to excute the servlet program . the deployment process is also correct , i am doing with the tomcat server, i had set the class path also. the compliation of the java file is also complied, only while excuting …  |
| | ok im trying to make a program for solving square equations by the general formula but for some reason i cannot get it to solve the equation so if anyone can help me this is my code: va= Integer.parseInt(a.getText()); vb= Integer.parseInt(b.getText()); vc= Integer.parseInt(c.getText()); vac=(4*va*vc); vbc=(2*vb*vb); vac2= (2*va); vb2=(-1*vb); raiz = … |
| | Hi, i have a problem here , i have made a class which has three methods , first method is to get size of the array and assign a random number to every element of array. Second method is to just print the whole array , while the last method … |
| | Hi sorry about asking so many questions.....and yes i have been searching on the internet, but anyways i am getting to start checking the array words with its chars and whatnot, but i dont know if will work i am confused where to put the array of words i have … |
| | I would appreciate if anybody can explain me MVC in swings. I have heard that each compnent has respective model class but unable to relate it with MVC. Kindly explain. |
| | i have this design internet | Router(Suse) ---- Content-Filter Server | LAN am using iptables to redirect client httprequests from Port 80 to my own program's port that is writen (in java) on the router now in my code i want to send ( redirect ) all client http requests … |
| | Hi, how would this work? Color circleColor = Color.yellow; JOptionPane.showMessageDialog(null, "The color of the circle is "+circleColor); Doing this prints out the values of red green and blue that make what ever color the variable is, like it would show this: java.awt.Color[r=0,g=0,b=0], exept for yellow. This is just an example …  |
| | after i added in my JTextArea, everything seem mess up, their position have already run away, whats going on ? [CODE] import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.awt.event.*; import javax.swing.border.*; public class MainTabbed { JLabel locationLabel; JLabel divingTypeLabel; JLabel dateLabel; JLabel maxDepthLabel; JLabel averageDepthLabel; JLabel fBuddyLabel; JLabel sBuddyLabel; JLabel … |
 | Hello, I'm getting a compile-time error in jdk1.2.1 which says "Identifier expected" and points to this line in the code: [CODE]Vector<Fish> fishes = new Vector<Fish>();[/CODE] Aren't vectors supported in jdk1.2.1? I'm unable to catch the problem. |
| | Hello all, Does anyone have a good tutorial that explains how JFrame works and how it can be implemented? |
| | everything is fine on my computer except all java windown in internet explorer will not work. On many websites i cannot click on links. No videos will play...for example youtube videos. i need to know how to fix just this problem, or just to completly restore windows to its original …  |
| | Hi, I'm trying to develop a program that will take one HTML file and from there open all child windows, copy the text on that HTML page and put it all into a new text file. I would do this manually but I have 2200 HTML pages to go through. … |
| | Hey, I am trying to make a little MDI control with tabs, but my problems lies in the following: I want it so that when the mouse is over a tab, a close button i.e. an X is displayed on the tab, then the user may click this button to … |
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