catch negative array....
class ArrayNegativeSizeExample
{
public static void main(String args[])
{
 
 try
 { 
int[ ] array = new int[-4];
 }
 catch(NegativeArraySizeException e)
 {
 
 e.printStackTrace();
 }
 
}
}

draw seveal shapes.....
import java.awt.*;
import java.applet.*;
public class shapes extends Applet
{
 public void paint(Graphics g)
 {
 g.drawLine(25,25,100,25);
 g.drawRect(25,50,100,50);
 g.fillRect(145,50,100,50);
 g.drawRoundRect(25,125,100,50,15,15);
 g.fillRoundRect(145,125,100,50,15,15);
 g.drawOval(25,205,100,50);
 g.fillOval(145,205,100,50);
 }
}
/*
<applet code="shapes.class" width=800 height=800></applet>
*/


4*4 grid.....
import java.awt.*;
class GridLayoutEx
{
public static void main(String args[])
{
Frame f = new Frame("GUI APP Example");
f.setVisible(true);
f.setSize(700,700);
f.setBackground(Color.yellow);
Button b[ ] = new Button[16];
GridLayout layout = new GridLayout(4,4,20,20);
f.setLayout(layout);
for(int i=1; i<=15; i++)
{
b[i] = new Button("Button-"+i);
f.add(b[i]);
}
}
}

create a frame two buttons...

import java.awt.*;
import java.awt.event.*;
class MotherandFather
{
public static void main(String args[])
{
Frame f = new Frame("Parents Delatils Examples");
 Label name = new Lab
name.setBounds(120,120,500,50); 
 f.add(name);
 
 Label age = new Label();
age.setBounds(120,160,500,50); 
 f.add(age);
 Label des = new Label();
des.setBounds(120,190,500,50); 
 f.add(des);
 Button father = new Button("FATHER");
father.setBounds(50,50,150,40);
f.add(father);
father.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
name.setText("Name = ANIL");
age.setText("Age = 32");
des.setText("designation = professior");
}
});
Button mother = new Button("MOTHER");
mother.setBounds(250,50,150,40);
f.add(mother);
mother.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
name.setText("Name = ANITA");
age.setText("Age = 28");
des.setText("designation = clerk");
}
});
f.setSize(500,500);
f.setLayout(null); 
f.setVisible(true);
}
}

your personal details..,

import java.awt.*; 
import java.awt.event.*; 
public class PersonalDetails 
{ 
public static void main(String args[]) 
{ 
Frame f = new Frame("Personal Details"); 
f.setSize(700, 400); 
f.setLayout(null); 
f.setVisible(true); 
 Button btn = new Button ("Click Here FOR MY PERSONAL DETAILS"); 
btn.setBounds(100,80,320,40); 
f.add(btn);
Label name= new Label();
name.setBounds(20,120,600,30); 
f.add(name);
Label fathername = new Label(); 
fathername.setBounds(20,160,600,30); 
f.add(fathername);
Label address = new Label(); 
 address.setBounds(20,200,600,30);
f.add(address);
btn.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{ 
 name.setText("NAME: Srushti V");
 fathername.setText("Father Name: Ram"); 
address.setText("Address : 7th Cross,Indira 
Nagar,Nidasoshi"); 
} 
}); 
}
}

window with two textfildes and buttons...,..

import java.awt.*;
import java.awt.event.*;
class Calculator 
{
public static void main(String[] args) 
{
 Frame f= new Frame("Addition of two number");
f.setSize(500, 500);
f.setLayout(null);
f.setVisible(true);
Label l1 = new Label("Enter The Value 1 : ");
l1.setBounds(10, 50, 100, 30);
 f.add(l1);
TextField t1 = new TextField();
t1.setBounds(150, 50, 250, 30);
 f.add(t1);
Label l2 = new Label("Enter The Value 2 : ");
l2.setBounds(10, 100, 100, 30);
 f.add(l2);
 TextField t2 = new TextField();
t2.setBounds(150, 100, 250, 30);
 f.add(t2);
Label l3 = new Label("Total: ");
l3.setBounds(10, 150, 100, 30);
f.add(l3);
Label l4 = new Label("---");
l4.setBounds(150, 150, 250, 30);
 f.add(l4);
Button add = new Button("Add");
add.setBounds(150, 200, 100, 30);
f.add(add);
Button clear = new Button("Clear");
clear.setBounds(300, 200, 100, 30);
f.add(clear);
add.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
int a = Integer.parseInt(t1.getText()); 
int b = Integer.parseInt(t2.getText()); 
int c = a+b;
String result = String.valueOf(c); 
l4.setText(result); 
 }
});
clear.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
t1.setText(""); 
t2.setText(""); 
 }
});
}
}

frame which display your personal...

import java.awt.*;
import java.awt.event.*;
public class KeysDemo
{
 public static void main(String args[])
 {
 Frame f = new Frame("Key Demo");
 f.setSize(400,300);
 f.setLayout(null);
 f.setVisible(true);
 
 Label L=new Label();
 L.setBounds(100,100,200,40);
 f.add(lbl);
 
 f.addKeyListener(new KeyListener()
 {
 public void keyPressed(KeyEvent e)
{
 if(e.getKeyChar() == 'M' || e.getKeyChar() == 'm')
 {
L.setText("Good morning");
 }
 else if(e.getKeyChar() == 'A'||e.getKeyChar() == 'a')
 {
 L.setText("Good afternoon");
 }
 else if(e.getKeyChar() == 'E' || e.getKeyChar() == 'e')
 {
 L.setText("good evening");
 }
 else if (e.getKeyChar() == 'N' || e.getKeyChar() =='n')
 {
 L.setText("Good night");
 }
}
 public void keyReleased(KeyEvent e)
 {
 } 
 public void keyTyped (KeyEvent e)
 {
 } 
 });
 
 } 
}

Demonstrate the various mouse .....

import java.awt.*;
import java.awt.event.*;
public class MouseEventsDemo
{
 public static void main(String args[])
 {
 Frame f = new Frame("Mouse Event Demo");
 f.setSize(400,300);
 f.setLayout(null);
 f.setVisible(true);
 
 Label L=new Label();
 L.setBounds(100,100,200,40);
 f.add(L);
 
 f.addMouseListener(new MouseListener()
 {
 public void mouseClicked(MouseEvent ev)
{
L.setText("Mouse Button Clicked");
}
public void mouseEntered(MouseEvent ev)
{
L.setText("Mouse Entered");
}
public void mouseExited(MouseEvent ev)
{
L.setText("Mouse Exited");
}
public void mousePressed(MouseEvent ev)
{
L.setText("Mouse Pressed");
}
public void mouseReleased(MouseEvent ev)
{
L.setText("Mouse Released");
}
 });
 
 }
 
}

program to create menu bar...

import java.awt.*; 
public class MenuDemo
{
public static void main(String args[])
{
Frame f = new Frame("Menu Demo");
f.setSize(300,300);
f.setLayout(null);
f.setVisible(true);
MenuBar mb = new MenuBar();
 f.setMenuBar(mb);
Menu fileMenu = new Menu("File");
Menu editMenu = new Menu("Edit");
Menu viewMenu = new Menu("View");
mb.add(fileMenu);
mb.add(editMenu);
mb.add(viewMenu);
MenuItem a1 = new MenuItem("New");
MenuItem a2 = new MenuItem("Open");
MenuItem a3 = new MenuItem("Save");
MenuItem b1 = new MenuItem("Copy");
MenuItem b2 = new MenuItem("Find");
MenuItem c1 = new MenuItem("Show");
fileMenu.add(a1);
fileMenu.add(a2);
fileMenu.add(a3);
editMenu.add(b1);
editMenu.add(b2);
viewMenu.add(c1);
}
}