How to Make a GUI Grid in Java

public class ButtonGrid { public static void main(String[] args) { } } 

import javax.swing.JFrame; import javax.swing.JButton; import java.awt.GridLayout; public class ButtonGrid { ... 

public class ButtonGrid { public ButtonGrid(int width, int length){ } } ... 

public class ButtonGrid { JFrame frame=new Jframe(); public ButtonGrid(int width, int length){ frame.setLayout(new GridLayout(width,length)); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.pack(); frame.setVisible(true); } } ... 

|JFrame frame=new JFrame(); //creates frame JButton[][] grid; //names the grid of buttons public ButtonGrid(int width, int length){ //constructor with 2 parameters frame.setLayout(new GridLayout(width,length)); //set layout of frame grid=new JButton[width][length]; //allocate the size of grid for(int y=0; y<length; y++){ for(int x=0; x<width; x++){ grid[x][y]=new JButton("("+x+","+y+")"); frame.add(grid[x][y]); //adds button to grid } } frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.pack(); frame.setVisible(true); } ... 

for(int y=0; y<length; y++){ for(int x=0; x<width; x++){ grid[x][y]=new JButton("("+x+","+y+")"); frame.add(grid[x][y]); } } ... 

public static void main(String[] args) { new ButtonGrid(3,3);//makes new ButtonGrid with 2 parameters } ... 

import javax.swing.JFrame; //imports JFrame library import javax.swing.JButton; //imports JButton library import java.awt.GridLayout; //imports GridLayout library public class ButtonGrid { JFrame frame=new JFrame(); //creates frame JButton[][] grid; //names the grid of buttons public ButtonGrid(int width, int length){ //constructor frame.setLayout(new GridLayout(width,length)); //set layout grid=new JButton[width][length]; //allocate the size of grid for(int y=0; y<length; y++){ for(int x=0; x<width; x++){ grid[x][y]=new JButton("("+x+","+y+")"); //creates new button  frame.add(grid[x][y]); //adds button to grid } } frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.pack(); //sets appropriate size for frame frame.setVisible(true); //makes frame visible } public static void main(String[] args) { new ButtonGrid(3,3);//makes new ButtonGrid with 2 parameters } }