Layout in Java Program

Layout in Java Program

Layout in Java Program

1.Flow Layout

2.Border Layout

3.Grid Layout

4.Card Layout

Flow Layout

import java.awt.*;

import java.applet.*;

public class FlowDemo extends Applet

{

void void init()

{

setLayout(new FlowLayout());

add(new Button("one"));

add(new Button("two"));

add(new Button("three"));

add(new Button("four"));

}

}

/*applet code=FlowDemo.class width=300 height=300></applet>*/

Border Layout

import java.awt.*;
class BorderLayoutExample extends Frame
{
BorderLayoutExample()
{
setLayout(new BorderLayout());
add(new Button("NORTH"),BorderLayout.NORTH);
add(new Button("SOUTH"),BorderLayout.SOUTH);
add(new Button("EAST"),BorderLayout.EAST);
add(new Button("WEST"),BorderLayout.WEST);
add(new Button("CENTER"),BorderLayout.CENTER);
}
class BorderLayout.JavaExample
{
public Static void main(String args[])
{
BorderLayoutExample frame=new BorderLayoutExample();
frame.setTitle("BorderLayout in java example");
frame.setSize(400,150);
frame.setVisible(true);
}

}

Grid Layout

import java.awt.*;
import java.applet.*;
public class Flow extends Applet
{
public void init()
{
setLayout(new GridLayout(3,3,5,5));
for(int i=1;i<=12;i++)
add(new Button("java"+i));
}
}

//<applet code=flow.class width=400 height=400></applet>

Card Layout

import java.awt.*;
import java.applet.*;
import java.awt.event.*;
public class CardDemo extends Applet implements ActionListener
{
Button b1,b2,b3,b4,b5,b6,b7,b8,b9;
Panel p1,p2,c1,c2,c3;
CardLayout cd;
public void init()
{
setLayout(new FlowLayout());
b1=new Button("one");
b2=new Button("two");
b3=new Button("three");
b4=new Button("four");
b5=new Button("five");
b6=new Button("six");
b7=new Button("card 1");
b8=new Button("card 2");
b9=new Button("card 3");
p1=new Panel();
p1.add(b7);
p1.add(b8);
p1.add(b9);
p2=new Panel();
cd=new CardLayout();
p2.setLayout(cd);
c1=new Panel();
c1.setBackground(Color.red);
c1.add(b1);
c1.add(b2);
p2.add("card1",c1);
c2=new Panel();
c2.setBackground(color,.cyan);
c2.add(b3);
c2.add(b4);
p2.add("card2",c2);
c3=new Panel();
c3=setBackground(color.blue);
c3.add(b5);
c3.add(b6);
p2.add("card3",c3);
add(p1,"west");
add(p2,"center");
b7.addActionListener(this);
b8.addActionListener(this);
b9.addActionListener(this);
}
public void actonPerformed(ActionEvent ae)
{
if(ae.getSource()==b7)
cd.show(p2,"card1");
else if(ae.getSource()==b8)
cd.show(p2,"card2");
else
cd.show("p2,"card3");
}
}

/*<applet code="CardDemo.class" width=300 height=300></applet>*/

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