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:

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. }