35,617 Topics
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| | How can i move between different methods with the same class. When i programmed in VB, it was just the name of the subroutine, but i cant figure it out in java. Please put me out of my misery |
| | I get this when I try to load my program, yet the compiler says its fine. Please help! Exception in thread "main" java.lang.NoClassDefFoundError: PIStudy$DoPolyINTest at PIStudy.<init>(PIStudy.java:51) at PIStudy.main(PIStudy.java:121) [CODE] import javax.swing.*; import java.util.Random; import java.awt.*; import java.awt.event.*; public class PIStudy { public JFrame window; public JButton name; public JButton comb; … |
| | //.... int vals[] = new int [12]; vals[18] = 10; catch (ArrayIndexOutofBoundsException) { //handle error ... } |
| | > Q1. How does bytecode differentiate java from other languages such as C or C++? > > > Q2. What is the dfference between the simple type Double and the class Double? > > > Q3. what is the difference between > > > (a) A single character typed in …  |
 | Hi, I'm in URGENT need of anyone who can help me with the following TicTacToe code. When you run it, it lets you click a box. When you click a box, X appears. The, when it's O's player's turn, it will not print an O. [CODE] import javax.swing.*; import java.awt.*; … |
| | i'm asking from the user to add the length of the array signal and after that if the size of signal is greater than 2 i create a new array smooth which the first value of it is [code] smooth[0]= (signal[0]+signal[1])/2; [/code] the second till the last-1 is [code] for … |
| | public class XClass { private int u; private double w; Public XClass () { } Public XClass ( int a, double b) Public void func() { } public void print() { } } XClass x = new XClass (10, 20.75); Q1. How many members does class XClass have? Q2. How …  |
| | I installed and uninstalled sun java about 5 times. I have bought noadware, disabled my Firewall, and deleted caches, temporary file, and everything I could think of, but to no avail. I am running Windows 98, DSL with Internet Explorer. Please help me make my browser recognize my Java. |
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| | I am working on a program which creates an arraylist containg all of the cards in a 52 card deck and then randomly selects 20 of them. I would like to have the program display the images of the cards, but I lack knowledge and resoursces to figure out how … |
| | I've created a program that counts the amt. of characters, words, and lines in a text file...I also need it to count the number of blank lines and the number of vowels in the text document. I don't know why, but I cannot seem to get it to work. If … |
| | Hi everyone. At the moment i am doing my thesis for my degree. The title is: "Compare and contrast Oracle client/server technologies with oracle web technologies. Design a business application and depoy it in both. " To compare the applications i am going to use java. I am going to … |
| | Hi everyone, I have a textpane with some text inside( i am using the HTMLDocument class as the default document of the textpane) and need to publish the contents of this textpane on certain webpage([url]www.free.com[/url]) What i have also a button together with the textpane on a frame thus when … |
| | Public class Prog1 { static final char = BLANK = ` `; static final char ONE 5; public static void main (String[] arg); { a = one + 5; b = a + blank; cc := a + one * 2; ONE = b + c; System.out.println(''a = '' + … |
| | hello, i just start learning java.please solve my following problem: Q: Write a simple program that allows a user to push up to ten names onto a stack as well as popping them off the stack. [B]my code is:[/B] import DataStructures.*; public class StackDemo { public static void main(String[] args) … |
| | Hi, I am working on a project using Java and embedded SQL in the Java. I have gotten the SQL to successful do what I need it to (In this case, create tables and insert data into them). However, I am having a difficult time with IO. The goal is … |
| | I'm having a problem whereby I create an instance of a class called Calculations.class in one of my main classes, but cannot access that instance from any other class. Here is the code public class Parameters{ //code// Calculations calc = new Calculations(); //some calculations done using variables in the calculations … |
 | I am working on a project which involves a server/client model running over a network. The server is written in Java, and the client is a C++ addition to an existing product (which is written in VB and C/C++). I chose to write my section in Java simply because I … |
| | Can anyone give me a basic script that takes a string and converts it into a characters using the nexttoken command to get the next char for searching purposes. |
| | Hi everyone, i need to ask a question which is how does one add a hyperlink in a jtextpane. I am using the default htmldocument class as the default document for the jtextpane. What i need is for example a user enters some text in the jtextpane and the user … |
| | a ball have radius 20 when i press a button once the radius increase by 5 subsequent clicks have the same effect until a max radius of 30 is reached after this the effect of click is to reduce the radius by 5 until it reach 10. after this a … |
| | I have just started using netbeans4.0, and there is no option to mount filesystem, so how can i import and use the elements package? |
| | A method i have to write finds and prints "magic squares" which are numbers that are perfect squares and a sum of consecutive numbers (1+2+3,etc.) Ex. the first 2 magic squares are 1 and 1225 it seems simple, but what i have doesn't work and i don't know y or … |
| | I keep getting a null pointer exception with this code: It's suppose to load a text file into a textArea. [Code] JFileChooser chooser = new JFileChooser(); int returnVal = chooser.showOpenDialog(this); String getFile = chooser.getName(); if(returnVal == JFileChooser.APPROVE_OPTION) { try { FileReader filegetter = new FileReader(getFile); BufferedReader br = new BufferedReader(filegetter); … |
| | WHAT IS WRONG HERE?WHY WON'T THIS SORT? public class bubble { public static void main (String[] args) { boolean Finished; int[] intRand = new int[11]; int[] unSorted = new int[11]; int intStore; int i; Finished = false; i = 1; while (i < 11) { intRand[i] = (int)(java.lang.Math.random() * 100); … |
| | I'm having a bit of trouble working out what sort of loop to use in a program I'm writing. Basically, I have a file with 2 lists of numbers separated by ";" e.g. Name ;Magnitude 2713.0;21.546 2713.0;19.564 2713.0;20.102 2713.0;20.959 2714.0;22.031 2714.0;18.46825 2714.0;15.323 2715.0;22.808 2715.0;19.345 2715.0;21.357 2716.0;21.473 on so on up … |
| | I found a cool site to do a few programming assignments for me. My teacher is probably the worse programming teacher on the planet. It's cool because they help teach you in the code they write. I didn't feel like they were just "doing my homework". [url]www.imalamecheaterd00d.com[/url]. Check it out. …  |
| | can anyone help with this i have to do a project and im running into alot of problems i have to write a discrete simulation to experiment with the performance of this strategy under different timeslice lengths and different dispatcher overhead times [dispatch latencies]. Do this by writing a simulation … |
| | I am having trouble compiling the following piece of code, it keeps giving me an error talking about an possible loss of precision. I know i could replace the one line to: private float someNum = 0; but i don't like that becuase it is assigning an int to a … |
| | I'm programming a GUI and some frames require images to be displayed on them. How do I go about importing a simple jpeg onto a Jpanel within the GUI frame? |
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