I need help! Java exception error

I need help! Java exception error

Hi Nick,

The exception in thread "main" java.lang.OutOfMemoryError: Java occurs because java virtual machine runs out of memory.

When java program is executed its variables, objects and values are stored in the memory of the java virtual machine.

Then after some time java garbage collector will randomly execute and clean the memory for further usage of the programs.

But if a program creates more objects in memory in a very quick time, the memory will be overloaded.

If that happens there will be no more space for java interpreter to create new instances so it will throw an out of memory exception.

The main problem of your code is you got a never ending loop inside your while loop. Check the logic in there. You have assigned the variable l as 0.

But you never increment it. And why do you increment the i after the while loop(i++;). There is no use of incrementing it after the while loop.

As a solution to your problem you should have increment the variable I inside the scope of the while loop. The following code will give you the exact solution I’m described.

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

public class board implements ActionListener{

        JButton y[]=new JButton[1000000];

        int xa, ya, i, l;

        JFrame Dave;

               public static void main(String[] args){

               board chuy = new board();

               chuy.setFrame();

        }

           public void setFrame(){

               xa=0;

               ya=0;

               l=0;

               i=1;

               Dave = new JFrame("Board");

               Dave.setLayout(new GraphPaperLayout(new Dimension(1000,1000)));

               while(l<9999){

                       y[i]=new JButton("");

                       Dave.add(y[i], new Rectangle(xa,ya,1,1));

                       if(xa<=1000){

                               if(xa==1000){

                                      xa=0;

                                      ya++;

                               }

                               else xa++; 

                       }

          I++;

                        i++;

               }

                  Dave.setVisible(true);

               Dave.setSize(360,400);

               Dave.setLocation(100,100);

               Dave.setResizable(false);

               Dave.setDefaultCloseOperation(Dave.DISPOSE_ON_CLOSE);

               }

                             public void actionPerformed(ActionEvent e){

                             } 

I hope your problem will be solved. I will give some information about java loops later. Also if you use an IDE for java development it will be easier for you.

It will reduce the time and effort you will spend on creating a software program. And it will automatically identify the compile errors of your code. So see you soon.