32,199 Topics
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| | hi everybody!!! im new in developing systems using java.. i want to develop any system i need help. i dont know what to do. if you have any idea on what i can do please help.. |
| | I need to write an application that reads a distance in metres. The program will then convert the distance to kilometres, feet and inches, by calling methods. Here is my code so far... looking for pointers please. [CODE]import javax.swing.JOptionPane; import java.text.DecimalFormat; /** This program converts meters to kilometers, inches, and … |
| | Hi I am developing a website in that i want an automatic email should be send to the user and the data entered by user should get stored in database(mysql) when the user fills the form Can any one help me with that. Thanks in advance |
| | Basically i want to make a platform game in java purely from the java 2d graphics. I have managed to link the keyListener to update variables which my graphics pane can then use to draw my images. But i cant do is get my image to refresh after the variables … |
| | If someone could take a look at my Java code for Payroll Program, I need to declare Int as a double in order to produce the produce of number of employees in a department times the average salary for each employee. If someone could throw up pointers, tips, or any … |
| | Is is possible to check if the execution of a java program from python gives any error during runtime and compile time ? Any help or sample code will be of real help.. Thanks in advance  |
| | Hi all, I'm having some problem with my codes. I have a output that is generated into a txt file. Now, I need to read the txt file and convert the output into something else. This is the output that is store in a txt file: VAL LEU SER PRO … |
 | I have problem with Radio Button I am making small online examination application. The problem is, suppose I select option 2 as the correct answer for first question, Then for second question option 2 appears as selected , This may confuse the candidate for examination,, Then if I make choice … |
| | Hello guys. I'm a new student in IT and they just introduced ud to GUI. I need help with how to make buttons and add images |
| | Hi all. I am, using Java for drop down menus, code follows. What I have not yet been able to figure out is how to make java display the page I select in a different frame. This is what is in the <HEAD> of one of my Pages. [CODE] <SCRIPT … |
| | I have a class that i have created of type StoreItem. It contains: String, int, double, int What I want to do is for the user to be able to add more items during runtime. I have tried to convert it to an ArrayList but I get errors telling me …  |
| | hello, can you help me please how can i random words and displaying it with the length of the string...example if the user inputed "stamp" then it will random the letters and display it 5 times... example: input : stamp output: pmast pmast stamp mastp sptma can you help me … |
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| | Hi how can i use volume keys and camera key in app ? i use -36 and - 37 constant value but it`s not work !!! i use this to get key name [CODE]str = getKeyName(keyCode);[/CODE] but when i press volume keys or camera key it`s return null i want … |
| | Hi, I'm having a problem with this part of my code: [CODE]} while ((menu2.equals("4") == false) || ((menu2.equals("3")) == false));[/CODE] The compiler seems to be ignoring it for me... is there something wrong? I basically want the loop to end if the String menu2 is either "4" or "3". What … |
 | See this Program, [CODE]class Test { enum Days {Monday,Tuesday,Wednesday,Thursday,Friday} enum Periods {Period1,Period2,Period3,Period4,Period5} public static void main (String [] args) { String DnP [][] = new String [6][5]; for (Days dys : Days.values()) { DnP [0][dys.ordinal()] = dys.name(); System.out.print (DnP[0][dys.ordinal()] + "\t "); } System.out.println ("\n\n"); for (int i=0; i<=4; i++) … |
| | hello guys, Can any of you help me create a game in java?? There has to be two paddles, one at the top and the other at the bottom. The paddles have to stop the ball from getting out of the screen. The ball cannot leave the screen from the … |
| | Guys any idea for this equivalent c loops in java::: for (sum=0,i=0,j=0;i<10;i++,j+=2) sum+=i+j Thank you: jamesPH |
| | public class While { public static void main(String args[]){ } public void printLoop(){ int counter = 1; while(counter <=25){ System.out.println(counter); counter++; } } } Hi, the above code compiles but nothing runs when I click on the run button. I am new to Java, you guys might find this problem … |
| | [CODE]import javax.swing.*; import java.awt.*; import java.awt.event.*; class plc extends JPanel{ plc() { this.addKeyListener(new MyKeyBoardListner()); System.out.println("key listner added"); } public void paintComponent(Graphics g) { super.paintComponent(g); g.drawRect(0,0,10,60); g.fillRect(0,0,10,60); } private class MyKeyBoardListner extends KeyAdapter { public void keyPressed(KeyEvent ke) { System.out.println(ke.getKeyCode()); } } } public class plank { public static void main(String[] … |
| | Ok, I did search on this site and found nothing that really helps with my issue. I am doing assignment - JPartyPlanner - I have the applet complete, it compiles and shows in IE great, BUT when I add the image code it still compiles but I get nothing showing … |
| | I have completed my applet code and it compiles fine - when I try to open it in explorer I get my welcome message but the applet does not fully open - all I get is the little box with the red X in top left corner. Help! Here is … |
| | Hi, I need to select 5 distinct random numbers out of 20 in my java program. I am able to select 5 random numbers, But I want these 5 numbers to be distinct,,,i.e. unique for e.g. I dont want them to be like these 5,6,9,6,1 because 6 is repeated I … |
| | I am writing a web service using apache axis which will accept a XML Message , process it and return another XML Message. But I am not getting any hints how to describe the input and output in WSDD file. Could anyone please suggest? |
| | Hello, If I am not wrong then the method with protected access modifier can be accessed by the same package and the sub-class outside the package. But I have problem regarding the same I have two packages p1 and p2, but when I try to access the method (protected) of … |
| | Hello... I am pretty new to Java and I am experiencing some frustration with loops. I have a few problems here and I hope that you guys could point me in the right direction. My first problem is with the looping in the program below. No matter what is input … |
| | Hi all, I am using getBytes() method in Java to encode the String, When I encode the String some string values does not Encode.. The Code is String psString ="ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö"; psString = new String(psString.getBytes("UTF-8")); I am Using Netbeans tool for Java. In Windows XP OS , it converts in to …  |
| | I am trying to get a Console using System.console() method, but it returns null. Please let me know how to get a Console object? Is their other criteria need to be satisfied? |
| | I have to write this applet for my CIT 130 class. I understand that you can not give solutions nor do I want you to do my homework for me I just need some pointers. The questions ask to "Write an applet that draws a house with it's door and … |
| | Hey guys, I've created a java applet which calculates PPI. my problem occurs when I add it to a webpage on dreamweaver. I get the following error message: [QUOTE] load: class calculator.java not found. java.lang.ClassNotFoundException: calculator.java at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source) at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown … |
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