32,199 Topics
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| | We are supposed to read data from a file like [COLOR="Green"]2 2 0 0 w d d w 0 1 w w d d 1 0 d w w w 1 1 d w x d[/COLOR] The first two numbers represent the column and rows the rest of next two … |
| | Here is the preorder: [code=java]private void preOrderTraverse(Node < E > node, int depth, StringBuilder sb) { for (int i = 1; i < depth; i++) { sb.append(" "); } if (node == null) { sb.append("null\n"); } else { sb.append(node.toString()); sb.append("\n"); preOrderTraverse(node.left, depth + 1, sb); preOrderTraverse(node.right, depth + 1, sb); … |
| | Dear Friend, I am new in Jave. right now I am learning APPLET but When I am trying to use THREAD in applet its giving the following warning after compilation. Note : Java Uses or Overloads a Depricated API. Note : REcompile with -XLint : Deprication for details. Tool Completed … |
| | I have a student class and also a cohort class. I need a command to find a certain student aStudent, bStudent etc but are unsure of the right way to do it Thanks in advance [import java.util.*; public class Cohort { private static int groupSize = 15; private HashSet aCohort; … |
| | i posted a problem here a while back on doing a program, and i got the help i needed... but i'm faced with another problem. this code seems to be working fine but i want it store the values i entered into another text field... i cant seem to figure …  |
| | Hey everyone, I've written an application with an animation using the Timer object. In order to stop the animation I call the stop method of the Timer class. From what i've read this just pauses the timer. My problem is that if i display the animation once it displays well. … |
| | I have these two classes Maze and MazeCell. I have a problem with the Maze constructor in Maze Class and do not know how to access it, or test it. Does Maze N = new Maze(row, col) do anything. I know it's supposed to set it as the length of …  |
| | Hello, guys. I'm very new to Java and this is my first time I'm actually programming by myself. I have a homework due soon. Anyways, my question is: Write a program that asks the user for a word to replace in some text, and the word to replace it with. … |
 | Dear all, I have these code below (netbeans) : All cells in columns "saldo Awal" are set to 58000000000.00, but appear in cell is 5.8E9 What should I fix in my code ? Thanks, Kusno import javax.swing.DefaultCellEditor; import javax.swing.table.DefaultTableCellRenderer; import javax.swing.table.DefaultTableModel; import java.awt.Component; import java.text.NumberFormat; import javax.swing.JTable; import javax.swing.JOptionPane; import … |
| | how do i reset the applet? i thought that it would work if i call the method itself thanks [code=java] private class ButtonListener1 implements ActionListener{ public void actionPerformed(ActionEvent e){ myButton1.setBackground(Color.black); int answer = JOptionPane.YES_OPTION; answer = JOptionPane.showConfirmDialog(null, "BOOOoooM!!! Would you like to play again?", "", JOptionPane.YES_NO_OPTION); if(answer == JOptionPane.YES_OPTION){ LoanApplet … |
| | I have to write an applet that asks the user to enter two floating-point numbers, obtains the two numbers from the user and draws their sum, product, difference and quotient. This is what I have so far. Can anyone make sure I am on the right track. import java.awt.Graphics; // …  |
| | Hi All, I have 2 classes. say Class A and Class B. My logic is coded in a method in class B. I am accessing this method of class B by creating an instance of class B in class A. To explain better: Class A{ ClassB b = new ClassB(); … |
| | public class myMutableTreeNode extends DefaultMutableTreeNode { // tree nodes rendered as JTable } public myWin extends Jframe() { // constructor top = new myMutableTreeNode(); jTree1=new JTree(top); .................................. // nodes are added to tree and rendered as jtable // On “save” menu option, I want to save this Jtree1 using XML … |
| | The following code is what I have so far. I know there are errors in some parts, because i'm currently still workin on them. However, I am having trouble invoking the reduce() method. The purpose of the program when im done is to be able to add and multiply fractions … |
| | Well this is a lab assignment, the problem I'm having is that the sample code he gave us is suppose to run as is, but it doesn't. I email him and he thought that most likely there might be a problem with the CLASSPATH for java or that I might … |
 | I've made some changes to the JavaScript that powers DaniWeb today. Can those of you who have JS/AJAX/DHTML disabled please enable it and let me know if it corrects the speed problems you were having. Thanks! |
| | I am passing information between two forms. Up to now, I have passed information from one form to another. Is there another way to do this? [DisplayDie dpDie = new DisplayDie(dp); // Getting constructor error in this line DisplayPanel dp = new DisplayPanel(dpDie,dpDie);] When I swap the lines, error moves … |
| | I'm having trouble with a switch statement [code=java]Scanner scan = new Scanner (System.in); char chars = scan.nextLine(); System.out.println("A Andorra\n" + "B Belgium\n" + "F Finland\n" + "M Malta\n" + "S Slovenia\n\n" + "Choose a country from menu above:\n" + chars); switch (chars) { case 'A': System.out.println("You chose \"Andorra\""); break; case … |
| | Here is my code package prg420.week5; //Creates the package import java.util.*; class Grades { //Creates the class for the variables private double grade1; private double grade2; private double grade3; private double grade4; private double grade5; public void setGrade1(double val) { grade1 = val; } public void setGrade2(double val) { grade2 … |
| | Hello All, I really hope that someone can provide some assistance. I have read a XML file into my hashtable. Next I created a second hashtable. If a key is located in my first hashtable, I want that key along with its value to be inserted into the second hashtable. … |
| | Hello people, I'm new here and new to java also... My only programming experience is in C, but now I have to do some work in java. First, the problem is: My input is an image file that contains different routes from a source to destination. (I have attached the … |
| | I am not sure how to fix this problem. I am trying to pause the display after the first 15 lines until the array ends. /* Week 4 Individual * Programmer: Melissa Snider * Date: 4/6/2008 * Calculate the mortgage payment for 3 loans with an array */ package prg420.week4; … |
| | Hi, Could someone point out ways on how I could reload the frame? so far, what I've done : [code]int more = JOptionPane.YES_OPTION; more = JOptionPane.showConfirmDialog(null, "BOOOoooM!!! Would you like to play again?", "", JOptionPane.YES_NO_OPTION); if(more == JOptionPane.YES_OPTION){ myFrame.setVisible(true); } else{ myFrame.setVisible(false); } [/code] I'm not sure what I should … |
| | Dear all, How do I validate cell value in jTable ? I want users to input numeric value in cell. Thanks, Kusno |
| | Hello, After having a list created from objects of a certain Class. I wish to sort the contents. How do I do this? This is my case: _bkgList = new ArrayList(); for(int i = 0; i<10; i++){ BookingResponse bkngRes = new BookingResponse(); bkngRes.setAwbNum(awbNum); bkngRes.setOrigin(origin); _bkgList.add(bkngRes); } As you can see, … |
| | Elo guys, i have trying to develop a client/server application! i'm new with sockets, so i'm trying to learn from existing source codes. I have come accros a piece of code: public static void main(String args[]) { // validate parameters: if (args.length != 2) { System.err.println("Usage: java GameClient <host> <friend_port>"); … |
| | Hello I'd like to have a list of ints inside my vector.. I tried to do the following: [CODE]private static Vector<List<int>> getCombMatrix() {[/CODE] But it will give me error: Syntax error on token "int", Dimensions expected after this token However, this works okay: [CODE]private static Vector<int[]> getCombMatrix() {[/CODE] What am … |
| | Devlope a Pedel boat class and a Rowing boat class and mark a boat as hired, storing the customer name and time, return a boat's details as a String, including customer name and time of hire if it currently hired out, calculate the amount due on a hired boat, given … |
| | Hi All! Im creating a java web application. I am finding a very little information on making forums/blogging/chatting application with java. There is plenty of stuff that uses php/mySQL. Should I learn php, or how to use java to interact with php, or are there tutorial, books or other sources … |
| | I want to call a shell script from java.I have searched in many java related web sites but I did not find the correct answer.Can anyone please help me out with this problem. plzzzzzzzzzzzzz thank you!!  |
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