GridLayout

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Java GridLayout

The GridLayout is used to arrange the components in rectangular grid. One component is displayed in each rectangle.

Constructors of GridLayout class

  1. GridLayout(): creates a grid layout with one column per component in a row.
  2. GridLayout(int rows, int columns): creates a grid layout with the given rows and columns but no gaps between the components.
  3. GridLayout(int rows, int columns, int hgap, int vgap): creates a grid layout with the given rows and columns alongwith given horizontal and vertical gaps.

Example of GridLayout class

GridLayout class

  1. import java.awt.*;  
  2. import javax.swing.*;  
  3.   
  4. public class MyGridLayout{  
  5. JFrame f;  
  6. MyGridLayout(){  
  7.     f=new JFrame();  
  8.       
  9.     JButton b1=new JButton("1");  
  10.     JButton b2=new JButton("2");  
  11.     JButton b3=new JButton("3");  
  12.     JButton b4=new JButton("4");  
  13.     JButton b5=new JButton("5");  
  14.         JButton b6=new JButton("6");  
  15.         JButton b7=new JButton("7");  
  16.     JButton b8=new JButton("8");  
  17.         JButton b9=new JButton("9");  
  18.           
  19.     f.add(b1);f.add(b2);f.add(b3);f.add(b4);f.add(b5);  
  20.     f.add(b6);f.add(b7);f.add(b8);f.add(b9);  
  21.   
  22.     f.setLayout(new GridLayout(3,3));  
  23.     //setting grid layout of 3 rows and 3 columns  
  24.   
  25.     f.setSize(300,300);  
  26.     f.setVisible(true);  
  27. }  
  28. public static void main(String[] args) {  
  29.     new MyGridLayout();  
  30. }  
  31. }