GridBagLayout

import java.awt.*;

class Gbltest extends Frame

{

TextArea ta;

TextField tf;

Button b1,b2;

CheckboxGroup cbg;

Checkbox cb1,cb2,cb3,cb4;

GridBagLayout gb;

GridBagConstraints gbc;

public GBltest(String title)

{

super(title);

gb=new GridBagLayout();

setLayout(gb);

gbc=new GridBagConstraints();

ta=new TextArea(“Textarea”,5,10);

tf=new TextField(“enter your name”);

b1=new Button(“TextArea”);

b2=new Button(“TextField”);


cbg=new CheckboxGroup();

cb1=new Checkbox(“Bold”, cbg,false);

cb2=new Checkbox(“Italic”, cbg,false);

cb3=new Checkbox(“Plain”, cbg,false);

cb4=new Checkbox(“Bold/Italic”, cbg,true);


gbc.fill=GridBagConstraints.BOTH;

addComponent(ta,0,0,4,1);


gbc.fill=GridBagConstraints.HORIZONTAL;

addComponent(b1,0,1,1,1);


gbc.fill=GridBagConstraints.HORIZONTAL;

addComponent(b2,0,2,1,1);


gbc.fill=GridBagConstraints.HORIZONTAL;

addComponent(cb1,2,1,1,1);


gbc.fill=GridBagConstraints.HORIZONTAL;

addComponent(cb2,2,2,1,1);


gbc.fill=GridBagConstraints.HORIZONTAL;

addComponent(cb3,3,1,1,1);


gbc.fill=GridBagConstraints.HORIZONTAL;

addComponent(cb4,3,2,1,1);


gbc.fill=GridBagConstraints.HORIZONTAL;

addComponent(tf,4,0,1,3);

}


public void addComponent(Component c, int row, int col, int nrow, int ncol)

{

gbc.gridx=col;

gbc.gridy=row;


gbc.gridwidth=ncol;

gbc.gridheight=ncol;


gb.setConstraints(c,gbc);

add(c);

}

public static void main(String args[])

{

Gbltest t=new Gbltest(“GridBag Layout”);

t.setSize(300,200);

t.show();

}

}