Thursday, 12 March 2015

GridLayout

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
import java.awt.*;  
import javax.swing.*;  
  
public class MyGridLayout{  
JFrame f;  
MyGridLayout(){  
    f=new JFrame();  
      
    JButton b1=new JButton("1");  
    JButton b2=new JButton("2");  
    JButton b3=new JButton("3");  
    JButton b4=new JButton("4");  
    JButton b5=new JButton("5");  
        JButton b6=new JButton("6");  
        JButton b7=new JButton("7");  
    JButton b8=new JButton("8");  
        JButton b9=new JButton("9");  
          
    f.add(b1);f.add(b2);f.add(b3);f.add(b4);f.add(b5);  
    f.add(b6);f.add(b7);f.add(b8);f.add(b9);  
  
    f.setLayout(new GridLayout(3,3));  
    //setting grid layout of 3 rows and 3 columns  
  
    f.setSize(300,300);  
    f.setVisible(true);  
}  
public static void main(String[] args) {  
    new MyGridLayout();  
}  
}  

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