32,199 Topics
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| | hi and good day to all, i have a problem with my data from the mysql. i have string data from the db and want to process in program(java app),but no out appeared.i suspect something is wrong with the input because, there is no problem if i run with direct … |
| | I'm trying to do four operations. Find the minimum including 0 # (working on) find the sum of the negative # (Think I'm done) Find the sum of the odd # (working on) How many positive #(working on) I need help on the sum of negative This is what will … |
 | Hello! I need to get some collision detection going in my code but I have no idea where to start! can anybody find out how to put this in? the detection will stop drwaing monstors if the bullet hits them [code] // The "SpaceShooter" class. //import java.applet.*; import java.applet.Applet; import … |
| | Recently, i found a book online that walks you through various elements of java game creation. The code from the book uses the java3D timer, so to compile the example programs, I had to download and install java3D. At Oracle's site, I selected WindowsXP as my OS and downloaded the … |
| | i am doing project bandwidth efficient video simulation in java. I set class path in jdk set classpath=%classpath%;.\\lib\\gif4j_pro_trial_2.3.jar; [Ljava.lang.String;@15151aa Exception in thread "AWT-EventQueue-0" java.lang.Error: Unresolved compilation p roblems: The import javax.media cannot be resolved The import javax.media cannot be resolved The import javax.media cannot be resolved The import javax.media cannot …  |
| | Hello everyone, I'm trying to create a diagram of numbers as represented by asterisks. I'm taking an integer and turning it into a string of *. For example, for the value of 4, it'd be ****. For the value of 7, it'd be *******. Does anyone know of a way …  |
| | I'm creating a program that adds fractions together. That being said however, my program does not seem to be responding correctly. Everytime I run the client code, it outputs 18, when I want it to add 2/6 and 1/6. [CODE] // Constructor // public class RationalNumber { int num; int … |
| | I'm in the works of creating a program that dishes out basic arithmetics with fractions, i.e., add, subtract. However, I found myself stumped over this error. [QUOTE]Test.java:18: 'void' type not allowed here System.out.println(r1.add(r2)); ^ 1 error[/QUOTE] My code is as follows: [CODE] \\ The constructor \\ public class RationalNumber { … |
| | Hello! I am a student and i have this assignment to do! I must create in Java a phone! Not a "working" phone just how it looks (sort of!!) I start it today and i have a few questions! I didnt do anything extraordinary, just create the outside and inside … |
| | [CODE]import net.htmlparser.jericho.*;[/CODE] hi i got this error when using the above library. it says " package net.htmlparser.jericho" does not exist" any help is deeply appreciated ^^ :-/ |
| | Hello. I am trying the last few days to make a text editor in Java but as I am new to the language I have some problems that I don't know how to deal with. The first one is that I want to save my text and then open it … |
| | JRE1.6.0_14 jpanel awt choice component |
| | Hi all, i have a variable in a JFRAME that i need to use in a JPANEL. How can i do that. Example: MainProgram that launches Java Application. Window1 that is a JFRAME Window2 that is a JPANEL In Window1 I have a variable declared example int X = 0; … |
| | I actually do not program in Java, I'm more of a C# and C++ person myself. But i do have a question regarding executable jar files. I have an executable .jar file that I would like to run, however can not. A console keeps flashing on the screen and dissapearing, … |
| | How do i call back a variable in void method into the main method?? [CODE]public void multiply (int x) { Vector3 v3 = new Vector3(num1*x,num2*x,num3*x); }[/CODE] |
| | Hi guys..., I want to know howmany devices connected with server..,And I want to find it by java code..Can you please help me to write a code for the same. |
| | this was the instructions... "Write a short Java program that takes two arrays a and b of length n storing int values, and return the dot product of a and b. That is, it returns an array c of length n such that c[i] = a[i] . b[i], for i …  |
| | Hey need to create tic tac toe but which reads from tester file - after the right direction to go from here, on how to implement it [CODE]import java.util.*; public class TicTacToe { public TicTacToe() { Scanner input = new Scanner(System.in); char[][] board = new char[3][3]; // Sets up game … |
| | These are the problems: Ground Beef Value Calculator Different packages of ground beef have different percentages of fat and different costs per pound. Write a program that asks the user for: 1. The price per pound of package "A" 2. The percent lean in package "A" 3. The price per … |
| | Need help with logging into a particular website using the GetElementby command As far as the username/password it seems to be working find but there isn't an ID or Tag for me to use in my script to click on this particular button called "submit". Looks like the page is … |
| | I need help with my code for computers, our final assignment is to make a simple game, so I decided to do Hangman. This assignment is worth 20% of my final mark due on Monday so if anybody could help me with it I would really appreciate it. (I'm still … |
| | Hi, Sorry for my ignorance but the problem I have is probably so simple that I cannot seem to find an answer for it. I am just learning about the Java.Util Package but in following my course module I am getting an error. here is the simple code : [CODE]import … |
| | Hi! I would like to create a button for deleting all JLabel components on JDesktopPane. My code is shown below. The error message is shown below the code. For instance, let's say there are 3 JLabel components (the 4th is not JLabel). In this case, only 2 of 3 JLabel … |
| | I'm writing an application using jdbc connection to access and want display a sql query using the number of rows found to declare an array of JTextFields. Not only does nothing display but also getting an Error: java.lang.ArrayIndexOutOfBoundsException: 00. Can anyone help please. [CODE] private void selItActionPerformed(java.awt.event.ActionEvent evt) { // … |
| | Hi, I'm in my first Java class and I am working on a problem that I could solve if I just figure out how to convert a char to an int. i.e. convert A to its letter equivalent with a function like this: [CODE] intLetter = charLetter.parseInt(); [/CODE] am I … |
| | I,ve set up a JTable and want to populate it from an Access database useing jdbc odbc. The data returned is placed into an array but my problem is how to use the array results with... jTable1.setModel(new javax.swing.table.DefaultTableModel( new Object [][] { {list[0], list[1], list[2], list[3], list[4]}, }, new String … |
| | [code] class trans { int m,n,l=0,k=-1,total,no=0; void det(int t) { total=t; } char[][] s5=new char[total][total]; char[][] s6=new char[total][total]; //rot90 public int rot90 (char[][] s2,char[][] s3) { for( m=0;m<total;m++) {l=0; for(n=total-1;n>=0;n--) { //[B][COLOR="Red"]line33[/COLOR][/B] s5[m][l]=s2[n][m]; [COLOR="Red"][B]\\Exception in thread "main" \\java.lang.ArrayIndexOutOfBoundsException: 0 \\at trans.rot90(gift1.java:33) \\at gift1.main(gift1.java:208)[/B] [/COLOR] l++; } } if(s5==s3) { return … |
| | Hi, i know how to read specific line form a text file but if we want to delete lines by specifying the line number. here is the code, but it's not working: i want to delete line 1 and 2 of the text file. [CODE]import java.io.*; public class ReadSpecificLine { … |
| | Hi, Can anyone tell me what is the problem with the below code: [CODE] String eleSrc=srcEle.toString(); String srcdata_list[]=eleSrc.split("-"); String eleDest=destEle.toString(); String destdata_list[]=eleDest.split("-"); int found=0; for(int i=0;i<srcdata_list.length;i++) { for(int j=0;j<destdata_list.length;i++) { if(srcdata_list[i].equals(destdata_list[j])) { found++; System.out.println("matches"); System.out.println("after matches"); break; } else { System.out.println("in else"); } } System.out.println("out of first for lopp"); if(found==0) … |
| | Hai all, I'm being create a dictionary. In the dictionary have feature search the word. if user entering the character "g" the word view in JList will show the word begin with "g". i try this first using Linier Search, it found the word, but linier. i mean if i … |
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