32,199 Topics
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| | hello everybody, ive devoloped an awt application in java, i want to call the paint() for drawing sytem time on a image through Graphics.drawString(String,int,int); now i want to refresh the time for each second by calling repaint(), but whats my problem is, each time i call repaint() the image i … |
| | (I posted this last night & was told I should have posted it elsewhere - I hope this is "elsewhere".) Windows ME 4.90.3000, ie 5.50.4.807.2300 updates SP2; q834707;q867801; (at this moment) Seems to run very slowly (speed of computer probably) even though she has lots of ram. Using McAfee VirusScanOnline … |
| | heres the start public class work { public static void main (String [] args) { int number = 1; } public static boolean ifstate() { if ( number == 0 ) blah blah } question - how do I get the second method to call on the varible from the … |
| | Hi everyone, I am currently trying to print even or odd pages only. I have a frame which contains a jtextpane with some text in it that spans about ten pages and it also contains two buttons. One button if clicked prints out only even pages and the other button … |
| | hi i have been given this cwk for java programming. and i need help getting started. i dont want u to do it all but if u can help to get me started i would really appreciate it thank u. this is the task: A large car dealing company wants … |
| | i have declared a static global integer, and have assigned it a value. I have then attempted to alter the variable from another method.(Using Classname.Variablename), but it will not work. Nor is it generating a scope error. Any ideas?  |
| | Hi All, Can anyone help me out in figuring how we can open an Internet explorer in say "Borderlayout.center" of the frame.  |
| | Hi everyone, I have a jtextpane with some text which spans to about 10 pages and what i want to able to insert page numbers into the center bottom of the page. I am using the DefaultStyledDocument class as the default document type for my jtextpane. I hope someone can … |
| | Dear all, My names its Max, and seems that I have some problems with JAVA coding. What I need to create its a GUI interface, from the code below. But I am having bad time because I am trying hard but I get always errors! It really frustrating, I do … |
| | 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 … |
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