1. UNIQUE COMPUTER
AWT- Close
import java.awt.*;
import java.awt.event.*;
public class awt_close
{
public static void main(String[] args)
{
Frame frame = new Frame("Close Operation Frame");
Label lbl = new Label("Welcome to Unique Computer: ",Label.CENTER);
frame.add(lbl);
frame.setSize(400,400);
frame.setVisible(true);
frame.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent we)
{
System.exit(0);
}
}
);
}
}
Data-1
import java.awt.*;
import java.awt.event.*;
class data extends Frame implements ActionListener
{
TextField txt=new TextField(20);
TextField txt2=new TextField(20);
Label lbl=new Label("Name",Label.LEFT);
Label lbl2=new Label("Output");
Button input_b=new Button("Input");
Button exit_b=new Button("Exit");
public data(String title)
{
super(title);
setLayout(new FlowLayout());
add(lbl);
add(txt);
add(lbl2);
txt2.setEditable(false);
add(txt2);
add(input_b);
input_b.setBackground(Color.yellow);
input_b.setForeground(Color.red);

2. UNIQUE COMPUTER
add(exit_b);
input_b.addActionListener(this);
exit_b.addActionListener(this);
}
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==input_b)
{
String a=txt.getText();
txt2.setText(a);
}
if(e.getSource()==exit_b)
{
System.exit(0);
}
}
public static void main(String args[])
{
data t=new data("Testing Component");
t.setSize(250,250);
t.show();
}
}
Data- 2
import java.awt.*;
import java.awt.event.*;
class data_2 extends Frame implements ActionListener
{
TextField txt=new TextField(20);
TextField txt2=new TextField(20);
Label lbl=new Label("Name",Label.LEFT);
Label lbl2=new Label("Output");
Button input_b=new Button("Input");
Button exit_b=new Button("Exit");
public data_2(String title)
{
super(title);
setLayout(new FlowLayout());
add(lbl);
add(txt);
add(lbl2);
txt2.setEditable(false);
add(txt2);

3. UNIQUE COMPUTER
add(input_b);
input_b.setBackground(Color.yellow);
input_b.setForeground(Color.red);
add(exit_b);
input_b.addActionListener(this);
exit_b.addActionListener(this);
}
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==input_b)
{
int num=Integer.parseInt(txt.getText());
int sq=num*num;
txt2.setText(String.valueOf(sq));
}
if(e.getSource()==exit_b)
{
System.exit(0);
}
}
public static void main(String args[])
{
data_2 t=new data_2("Testing Component");
t.setSize(250,250);
t.show();
}
}
Frame Demo
import java.awt.*;
class framedemo extends Frame
{
public framedemo(String title)
{
super(title);
}
public static void main(String args[])
{
framedemo obj=new framedemo("I have been Frame");
obj.setSize(500,500);
obj.setVisible(true);
}
}

4. UNIQUE COMPUTER
Panel
import java.awt.*;
class paneldemo extends Panel
{
public paneldemo()
{
}
public static void main(String args[])
{
paneldemo obj=new paneldemo();
Frame f=new Frame("Testing a Panel");
f.add(obj);
f.setSize(500,500);
f.setVisible(true);
}
}
Label
import java.awt.*;
import java.awt.event.*;
class t_label extends Frame implements ActionListener
{
TextField txt=new TextField(20);
Label lbl=new Label("Name");
Button exit_b=new Button("Exit");
public t_label(String title)
{
super(title);
setLayout(new FlowLayout());
add(lbl);
add(txt);
System.out.println();
add(exit_b);
exit_b.addActionListener(this);
}
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==exit_b)
{
System.exit(0);
}

5. UNIQUE COMPUTER
}
public static void main(String args[])
{
t_label t=new t_label("Testing Component");
t.setSize(250,250);
t.show();
}
}
APPLET
Applet-Life Cycle:
import java.awt.*;
import java.applet.*;
public class applet_demo1 extends Applet
{
public void init()
{
setBackground(Color.cyan);
setForeground(Color.red);
}
public void start()
{
}
public void stop()
{
}
public void destroy()
{
}
public void paint(Graphics g)
{
}
}

6. UNIQUE COMPUTER
Applet-String 1:
import java.awt.*;
import java.applet.*;
/*
<applet code="applet_demo2" width=300 height=100>
</applet>
*/
public class applet_demo2 extends Applet
{
String msg;
public void init()
{
setBackground(Color.cyan);
setForeground(Color.red);
msg="Inside init()";
}
public void start()
{
msg+=" Inside_Start()";
}
public void stop()
{
}
public void destroy()
{
}
public void paint(Graphics g)
{
msg+=" Inside_Paint()";
g.drawString(msg,40,40);
}
}
Applet String- Scrolling:
import java.awt.*;
import java.applet.*;
import java.awt.event.*;
import java.util.*;
/*
<applet code="applet_demo3" width=300 height=100>
</applet>
*/

7. UNIQUE COMPUTER
public class applet_demo3 extends Applet implements Runnable
{
String msg;
Thread t=null;
char c;
public void init()
{
setBackground(Color.cyan);
setForeground(Color.red);
msg=" A simple banner ";
}
public void start()
{
try
{
t=new Thread(this);
t.start();
}catch(Exception e){}
}
public void stop()
{
}
public void destroy()
{
}
public void paint(Graphics g)
{
g.drawString(msg,50,50);
}
public void run()
{
for(;;)
{
try
{
repaint();
t.sleep(300);
c=msg.charAt(0);
msg=msg.substring(1,msg.length());
msg=msg+c;
}catch(Exception e){}
}
}
}