Simple And Advanced Java Programs

/* Implementation Of Vectors */
import java.util.Vector;
import java.io.*;
public class MainClass extends Thread{
public static void main(String args[]) throws InterruptedException{
Vector v = new Vector();
int num,choice,ch;
boolean tr = true;
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
try {
do {
System.out.println("1. Add Elements\n2. Delete Elements\n3. Display\n4. Exit");
choice = Integer.parseInt(br.readLine());
switch(choice) {
case 1:
System.out.println("Enter Element : ");
v.add(Integer.parseInt(br.readLine()));
break;
case 2:
int no;
System.out.println("Enter Element : ");
no = Integer.parseInt(br.readLine());
if(v.contains(no))
v.removeElement(no);
break;
case 3:
System.out.println(v);
break;
case 4:
System.out.println("Exiting Application....");
Thread.sleep(2000);
System.exit(0);
break;
default:
System.out.println("ERROR!!! INVALID OPTION!!!");
Thread.sleep(2000);
}
System.out.println("Do YOu want to continue (1 = yes: )");
ch = Integer.parseInt(br.readLine()); }
while(ch==1);
} catch(Exception e){
System.out.println("Error Message: "+e);
}
}}
/**** OutPut ******
1. Add Elements
2. Delete Elements
3. Display
4. Exit
1
Enter Element :
4
Do YOu want to continue (1 = yes: )
1
1. Add Elements
2. Delete Elements
3. Display
4. Exit
1
Enter Element :
6
Do YOu want to continue (1 = yes: )
1
1. Add Elements
2. Delete Elements
3. Display
4. Exit
1
Enter Element :
7
Do YOu want to continue (1 = yes: )
1
1. Add Elements
2. Delete Elements
3. Display
4. Exit
1
Enter Element :
5
Do YOu want to continue (1 = yes: )
1
1. Add Elements
2. Delete Elements
3. Display
4. Exit
3
[4, 6, 7, 5]
Do YOu want to continue (1 = yes: )
1
1. Add Elements
2. Delete Elements
3. Display
4. Exit
2
Enter Element :
7
Do YOu want to continue (1 = yes: )
1
1. Add Elements
2. Delete Elements
3. Display
4. Exit
3
[4, 6, 5]
Do YOu want to continue (1 = yes: )
1
1. Add Elements
2. Delete Elements
3. Display
4. Exit
4
Exiting Application.... */

/* Implementation Of Threads */

import java.io.*;
import java.util.*;

class AA extends Thread
{
int i;
public void run()
{
System.out.println("Thread A");
for(i=0;i<5;i++)
{
System.out.println("Thread A : "+i);
yield();
}
}
}
class B extends Thread
{
int i;
public void run()
{
System.out.println("Thread B");
for(i=0;i<5;i++)
{
System.out.println("Thread B : "+i);
yield();
}
}

}
class C extends Thread
{
int i;
public void run()
{
System.out.println("Thread C");
for(i=0;i<5;i++)
{
System.out.println("Thread C : "+i);
yield();
}
}
}
class ThreadLionel
{
public static void main(String []args)
{
AA a = new AA();
B b = new B();
C c = new C();
a.start();
b.start();
c.start();
}
}
/*
--------------------OUTPUT--------------------
Thread A
Thread A : 0
Thread A : 1
Thread B
Thread B : 0
Thread C
Thread C : 0
Thread A : 2
Thread B : 1
Thread C : 1
Thread A : 3
Thread B : 2
Thread C : 2
Thread A : 4
Thread B : 3
Thread C : 3
Thread B : 4
Thread C : 4
*/

/********** Implementation of Matrix Operation Using Arrays *********/
// Matrix Addtion, Subtraction, Transpose, Multiplication

import matrix;

class Matrix
{
public static void main(String args[])
{
int i,j,k;
int mat1 [][]={ {1,2,3}, {4,5,6}, {7,8,9} };
int mat2 [][]={ {10,11,12}, {13,14,15}, {16,17,18} };

//Matrix A
System.out.println("\nMatrix A:");
for(i=0;i< 3;i++)
{
for(j=0;j< 3;j++)
System.out.print("\t"+mat1[i][j]);
System.out.println("");
}

//Matrix B
System.out.println("\nMatrix B:");
for(i=0;i< 3;i++)
{
for(j=0;j< 3;j++)
System.out.print("\t"+mat2[i][j]);
System.out.println("");
}
System.out.println("\nOperation ON Matrices \n1.Addition \n");
int sum [][] = new int [3][3];
for(i=0;i< 3;i++)
{
for(j=0;j< 3;j++)
{
sum[i][j] = mat1[i][j] + mat2[i][j];
System.out.print("\t" + sum[i][j]);
}

System.out.println("");
}

System.out.println("2.Subtraction\n");
int diff[][] = new int[3][3];
for(i=0;i< 3;i++)
{
for(j=0;j< 3;j++)
{
diff [i][j] = mat1[i][j] - mat2[i][j];
System.out.print("\t"+ diff[i][j]);
}
System.out.println("");
}

System.out.println("3. Transpose Of A\n");
int trans[][] = new int[3][3];
for(i=0;i< 3;i++)
{
for(j=0;j< 3;j++)
{
trans [i][j] = mat1[j][i];
System.out.print("\t"+ trans[i][j]);
}
System.out.println("");
}
System.out.println("4.Multiplication\n");
int prod[][] = new int[3][3];
for(i=0;i< 3;i++)
{
for(j=0;j< 3;j++)
{
prod[i][j] = 0;
{
for(k=0;k< 3;k++)
prod[i][j] = prod[i][j]+mat1[i][k]*mat2[k][j];
}
System.out.print("\t"+ prod[i][j]);
}
System.out.println("");

}
}
}

/************* OUTPUT ***************



Matrix A:
1 2 3
4 5 6
7 8 9

Matrix B:
10 11 12
13 14 15
16 17 18

Operation ON Matrices
1.Addition

11 13 15
17 19 21
23 25 27
2.Subtraction

-9 -9 -9
-9 -9 -9
-9 -9 -9
3. Transpose Of A

1 4 7
2 5 8
3 6 9
4.Multiplication

84 90 96
201 216 231
318 342 366
*/

/* java program : implementation of packges...
Import a package in a class and use it. */

/*
First.java
*/

package pack;

public class First
{
static double amt,sim,comp,princ = 1000,rate = 0.09;
static int n=2;

public First()
{
System.out.println("\n...Welcome to First Class\n");
}

public static void DisplayData()
{
System.out.println("Principle Amount\t:"+princ+"\nRate Of Interest\t:"+rate*100+"%");
System.out.println("Term\t\t\t:"+n);
}
public static void SimpleInterest()
{
System.out.println("\nDisplaying Simple Interest...");
try
{
Thread.sleep(1000); // do nothing for 1000 miliseconds (1 second)
}
catch(InterruptedException e)
{
e.printStackTrace();
}
sim = (princ*n*rate);
System.out.println("\tInterest\t: "+sim);
}

public static void CompInterest()
{
System.out.println("\nDisplaying Compound Interest...");
try
{
Thread.sleep(1000); // do nothing for 1000 miliseconds (1 second)
}
catch(InterruptedException e)
{
e.printStackTrace();
}
double ans = princ*(1+rate/n);
comp = Math.pow(ans,(double)n*4.0);
System.out.println("\tInterest\t: "+comp);
}
/* public static void main(String []args)
{
First f= new First();
f.DisplayData();
f.SimpleInterest();
f.CompInterest();
}*/
}

/* The socond file imports the first file and calculates the interst*/
/*Second.java*/

import pack.First;

class Second
{
public static void main(String[] args)
{
System.out.println("Running Class Second..");
First first = new First();
first.DisplayData();
first.SimpleInterest();
first.CompInterest();
}
}

/* Output
* Running Class Second..
*
* ...Welcome to First Class
*
* Principle Amount :1000.0
* Rate Of Interest :9.0%
* Term :2
*
* Displaying Simple Interest...
* Interest : 180.0
* Displaying Compound Interest...
* Interest : 1.4221006128366082E24
*/

/* (Length Convertor): Simple Java Program to convert miles, kilometers, meter, feet, centimeter and inches
*/
Enter value for Miles: 45

Kilometer: 72.4185
Meter: 72418.5
Feet: 237593.50429815002
Inches: 2851122.0515778
Centimeter: 7241850.011007612

import java.io.*;

public class ConverterIO
{
public static void main(String[] args) throws IOException
{
BufferedReader dataIn = new BufferedReader(new InputStreamReader(System.in));
String strChoose;
int choose;
String strMiles, strKilometer, strMeter, strFeet, strInches, strCentimeter;
double miles, kilometer, meter,feet, inches, centimeter;
boolean done = false;
while (!done)
{
//Getting input from the user
println("\n\n\n\t\tLENGTH CONVERTER");
println("\n\tWhat you would like to convert?");
println("");
println("\t1) Miles 4) Feet");
println("\t2) Kilometer 5) Inches");
println("\t3) Meter 6) Centimeter");
println("\t\t 7) Exit");
print("\n\tEnter your choice: ");
strChoose = dataIn.readLine();
choose = Integer.parseInt(strChoose);

if ((choose < = 0) || (choose >= 8))
{
println("\tInvalid entry, please try again!");
}

switch (choose)
{
case 1:
print("\n\tEnter value for Miles: ");
strMiles = dataIn.readLine();
miles = Double.parseDouble(strMiles);
println("\n\t\tKilometer: " + (miles*1.6093));
println("\t\tMeter: " + (miles*1609.3));
println("\t\tFeet: " + (miles*5279.85565107));
println("\t\tInches: " + (miles*63358.26781284));
println("\t\tCentimeter: " + (miles*160930.0002446136));
break;

case 2:
print("\n\tEnter value for Kilometer: ");
strKilometer = dataIn.readLine();
kilometer = Double.parseDouble(strKilometer);
println("\n\t\tMiles: " + (kilometer*0.6213882));
println("\t\tMeter: " + (kilometer*1000));
println("\t\tFeet: " + (kilometer*3280.8399));
println("\t\tInches: " + (kilometer*39370.0788));
println("\t\tCentimeter: " + (kilometer*100000)); break;

case 3:
print("\n\tEnter value for Meter: ");
strMeter = dataIn.readLine();
meter = Double.parseDouble(strMeter);
println("\n\t\tMiles: " + (meter*621.3882));
println("\t\tKilometer: " + (meter*1000));
println("\t\tFeet: " + (meter*3.2808399));
println("\t\tInches: " + (meter*39.3700788));
println("\t\tCentimeter: " + (meter*100));
break;

case 4:
print("\n\tEnter value for Feet: ");
strFeet = dataIn.readLine();
feet = Double.parseDouble(strFeet);
println("\n\t\tMiles: " + (feet*0.0001893991176));
println("\t\tKilometer: " + (feet*0.0003048));
println("\t\tMeter: " + (feet*0.3048));
println("\t\tInches: " + (feet*12));
println("\t\tCentimeter: " + (feet*30.48));
break;

case 5:
print("\n\tEnter value for Inches: ");
strInches = dataIn.readLine();
inches = Double.parseDouble(strInches);
println("\n\t\tMiles: " + (inches*0.000015783254));
println("\t\tKilometer: " + (inches*0.000025349));
println("\t\tMeter: " + (inches*0.02534));
println("\t\tFeet: " + (inches*0.08333));
println("\t\tCentimeter: " + (inches*2.51));
break;

case 6:
print("\n\tEnter value for Centimeter: ");
strCentimeter = dataIn.readLine();
centimeter = Double.parseDouble(strCentimeter);
println("\n\t\tMiles: " + (centimeter*0.000006218797));
println("\t\tKilometer: " + (centimeter*0.000004));
println("\t\tMeter: " + (centimeter*0.004));
println("\t\tFeet: " + (centimeter*0.032808386877));
println("\t\tInches: " + (centimeter*0.3937008));
break;

case 7:
done = true;
println("\n\tThank you for using this program!");
println("\n\n");
break;

default: throw new NumberFormatException();

} // end switch
} // end while
} // end main

//short cut for print
private static void print(String s)
{
System.out.print(s);
}

//short cut for println
private static void println(String s)
{
System.out.println(s);
}
}

/* Output
LENGTH CONVERTER

What you would like to convert?

1) Miles 4) Feet
2) Kilometer 5) Inches
3) Meter 6) Centimeter
7) Exit

Enter your choice: 1

Enter value for Miles: 45

Kilometer: 72.4185
Meter: 72418.5
Feet: 237593.50429815002
Inches: 2851122.0515778
Centimeter: 7241850.011007612


LENGTH CONVERTER

What you would like to convert?

1) Miles 4) Feet
2) Kilometer 5) Inches
3) Meter 6) Centimeter
7) Exit

Enter your choice: 5

Enter value for Inches: 48.5

Miles: 7.65487819E-4
Kilometer: 0.0012294265
Meter: 1.22899
Feet: 4.041505
Centimeter: 121.73499999999999


LENGTH CONVERTER

What you would like to convert?

1) Miles 4) Feet
2) Kilometer 5) Inches
3) Meter 6) Centimeter
7) Exit

Enter your choice: 7

Thank you for using this program!
*/

/* Java program on Arrays - Bubble sort on numbers
*/

import java.io.*;
class Bubble
{
public static void main(String args[]) throws IOException
{
int num;
System.out.println("Program to demonstrate bubble sort");
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
System.out.println("Enter the number of elements to be entered <10");
num=Integer.parseInt(br.readLine());
System.out.println("Enter the numbers to be sorted");
int arr[]=new int[10];

for(int i=0;i< num;i++)
{
arr[i]=Integer.parseInt(br.readLine());
}
System.out.println("The number you have entered:");
for(int i=0;i< num;i++)
{
System.out.println(arr[i]);
}
for(int i=0;i< num;i++)
{
for(int j=i+1;j< num;j++)
{
if(arr[i]>arr[j])
{
int temp=arr[i];
arr[i]=arr[j];
arr[j]=temp;
}
}
}
System.out.println("The sorted numbers are");
for(int i=0;i< num;i++)
{
System.out.println(arr[i]);
}

}
}
 

/********* Output **********

Program to demonstrate bubble sort
Enter the number of elements to be entered <10
5
Enter the numbers to be sorted
8
65
14
23
2
The number you have entered:
8
65
14
23
2
The sorted numbers are
2
8
14
23
65

*/

/***** Java Program to read a file and display it on the screen */

import java.io.*;
public class LioFile
{
public static void main(String args[])
{
try
{
FileReader fr=new FileReader("LioFile.java");
BufferedReader br=new BufferedReader(fr);
String str=" ";
String s1 =" ";
System.out.println(" s1 is "+s1.equals("ass"));

while((str=br.readLine())!=null)
{
System.out.println(str);
}
}
catch(FileNotFoundException fe)
{
fe.printStackTrace();
}
catch(IOException e)
{
e.printStackTrace();
}
}
}

/**** Output ***
s1 is false
import java.io.*;
public class J7
{
public static void main(String args[])
{
try
{
FileReader fr=new FileReader("J7.java");
BufferedReader br=new BufferedReader(fr);
String str=" ";
String s1 =" ";
System.out.println(" s1 is "+s1.equals("ass"));

while((str=br.readLine())!=null)
{
System.out.println(str);
}
}
catch(FileNotFoundException fe)
{
fe.printStackTrace();
}
catch(IOException e)
{
e.printStackTrace();
}


}
}
*/

/* Function Overloading program in java. The program overloads the area() function and calculates the area for square, rectangle and triangle */

class overloading
{
double area,root;
//Area Of Square
public void Area(double a)
{
area = a*a;
System.out.println("The Area Of Square : " +area);
}

// Area of rectangle
public void Area(double a,double b)
{
area= a*b;
System.out.println("The Area Of Rectangle : " +area);
}

// Aera Of Triangle
public void Area(double a,double b,double c)
{
double s= (a+b+c);
root = s*(s-a)*(s-b)*(s-c);
area = Math.sqrt(root);
System.out.println("The Area Of Triangle : " +area);
}

public static void main(String args[])
{
overloading ar = new overloading();
ar.Area(5.65);
ar.Area(5.32,43.2);
ar.Area(4,7,7);
}
}
/* Output
The Area Of Square : 31.922500000000003
The Area Of Rectangle : 229.82400000000004
The Area Of Triangle : 174.61958653026298 */

/* Simple Type casting program */
class cast
{
public static void main(String args[])
{
double a=5.35, b=55.6;
int rem;
rem = (int)a% (int)b;
System.out.println("Remainder : "+rem);
}
}

/* Output
Remainder : 5 */

Today we have come to the point where our life would be impossible without computers. We do not even care to think how we will live without our lap-top or mobile phone which has build-in programs for searching the Net or creating text documents or just listening to mp3 files. We all got accustomed to the Internet and E-mail which help to connect with our friends for different countries. And if your website tends to be a unique presentation of the company it should definitely use the technology feature such as phpfox that lets you customize the design and additional features available to the visitors.

But how can we use all these devices. The answer is obvious. People create different software to suit every device. Also there can be offered the services of custom software development that might include jdbc drivers for Java-applications which give an opportunity to adapt to the needs of particular companies which are going to use this kind of software or device.

Alongside with software development many companies use Internet for their business. In this case it is advisable to order an outstanding Web design of your resource. Today there is no problem with that. For example, your company is situated it Chicago. So you can order Chicago web design just round the corner which is definitely great for corrective feedback. So you can see that computer technologies are practically irreplaceable in our life

Program in java for inserting, recording, deleting, editing and searching student details stored in the SQL database.

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.IOException;
import java.sql.SQLException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;
import java.sql.ResultSet;


class studentdetails
{
Statement stmt;
String strSql;
Connection con;
BufferedReader bufferObj;
studentdetails (){
bufferObj=new BufferedReader(new InputStreamReader(System.in));
}

void establishConnection()
{
try
{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
}
catch(ClassNotFoundException ex)
{
System.out.println(ex);
}

try
{
String url="jdbc:odbc:new_dsn";
con=DriverManager.getConnection(url,"sa","");
stmt=con.createStatement();
}
catch(SQLException ce)
{
System.out.println("Error... "+ce);
}
}


void add()
{
try
{
System.out.println("\nEnter Roll Number: ");
String rollno=bufferObj.readLine();

System.out.println("\nEnter Students Name: ");
String name=bufferObj.readLine();

System.out.println("\nEnter Course Name");
String course=bufferObj.readLine();

strSql="Insert into Student values(" +rollno+",'"+name+"',' "+course+" ')";

stmt.executeUpdate(strSql);
System.out.println("\nRecords Successfully Added!");

System.out.println();
}

catch(SQLException ce)
{
System.out.println("Error... "+ce);
}

catch(Exception e)
{
System.out.println(e);
}
}

void update()
{
try
{
System.out.println("\nEnter Roll Number whose "+"record should be updated: ");
String roll=bufferObj.readLine();
System.out.println("Enter Students Name to be Modified: ");
String name=bufferObj.readLine();
System.out.println("Enter course name to be modified: ");
String course=bufferObj.readLine();
strSql="update Student set name=' "+name+" ',course='"+course+"' where rollno='"+roll+"'";

stmt.executeUpdate(strSql);
System.out.println("\nRecord Successfully Modified !");
System.out.println();
}

catch(SQLException ioe)
{
System.out.println(ioe);
}

catch(Exception er)
{
System.out.println(er);
}
}

void delete()
{
try
{

System.out.println("Enter Students Name to be Deleted :") ;
String name=bufferObj.readLine();
strSql="Delete from Student where rtrim(name) like '"+name+ "'";

stmt.executeUpdate(strSql);
System.out.println("Record Successfully Deleted !");
System.out.println();
}

catch(SQLException et)
{
System.out.println("Error in Deletion.... "+et);
}

catch(Exception ty)
{
System.out.println("Error.... "+ty);
}
}

void search()
{
try
{
System.out.println("Enter Roll Number "+"whose record should be searched: ");
int roll=Integer.parseInt(bufferObj.readLine());

System.out.println("Enter Students Name to be Searched");
String name=bufferObj.readLine();

strSql="select * from student where name like'"+name;
strSql=strSql+"' and Rollno="+roll;

ResultSet rs=stmt.executeQuery(strSql);
if(!rs.next())
{
System.out.println("Name");
System.out.println(rs.getString(1)+"\t");
System.out.println("Roll Number");
System.out.println(rs.getInt(2)+"\t");
System.out.println("Course");
System.out.println(rs.getString(3)+"\n");
}
}

catch(SQLException er)
{
System.out.println(er);
}

catch(Exception t)
{
System.out.println(t);
}
}

public void menudisplay() throws IOException
{
char choice;
while(true)
{
System.out.println();
System.out.println("1. Add a Record");
System.out.println("2. Modify Record");
System.out.println("3. Delete a Record");
System.out.println("4. Search a Record");
System.out.println("5. Exit");
System.out.println("Enter your choice....:");

BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
choice=(char) br.read();
switch(choice)
{
case '1' :
System.out.println("Adding a Record........");
add();
break;

case '2' :
System.out.println("Updating a Record........");
update();
break;

case '3' :
System.out.println("Deleting a Record........");
delete();
break;

case '4' :
System.out.println("Searching a Record........");
search();
break;

case '5' :
System.exit(0);
break;

default :
System.out.println("Adding a Record........");
add();
break;

}
}
}
}

class student
{
public static void main(String[] args) throws IOException
{
studentdetails stud = new studentdetails();
stud.establishConnection();
stud.menudisplay();
}
}

/* Java Program that implements data connectivity */

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.sql.*;
public class Test extends JFrame implements ActionListener
{
Container con;
JLabel l1;
JLabel l2;
JLabel l3;
JLabel l4;
JLabel l5;
JTextField lt1;
JTextField lt2;
JTextField lt3;
JTextField lt4;
JTextField lt5;
JButton lb1;
Connection con1;
Statement s;
ResultSet rs;
public Test()
{
super("student details!!!");
con=getContentPane();
con.setLayout(null);
l1=new JLabel("Roll no.");
l1.setBounds(50,10,250,75);
con.add(l1);

l2=new JLabel("Name");
l2.setBounds(50,30,250,75);
con.add(l2);

l3=new JLabel("Age");
l3.setBounds(50,50,250,75);
con.add(l3);

l4=new JLabel("Address");
l4.setBounds(50,70,250,75);
con.add(l4);

l5=new JLabel("Marks");
l5.setBounds(50,90,250,75);
con.add(l5);

lt1=new JTextField(10);
lt1.setBounds(115,35,100,15);
con.add(lt1);

lt2=new JTextField(20);
lt2.setBounds(115,60,100,15);
con.add(lt2);

lt3=new JTextField(30);
lt3.setBounds(115,80,100,15);
con.add(lt3);

lt4=new JTextField(40);
lt4.setBounds(115,103,100,15);
con.add(lt4);

lt5=new JTextField(50);
lt5.setBounds(115,127,100,15);
con.add(lt5);

lb1=new JButton("GO");
lb1.setBounds(250,30,100,50);
con.add(lb1);

lb1.addActionListener(this);
try
{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
con1=DriverManager.getConnection("jdbc:odbc:mydsn","sa","");
s=con1.createStatement();
}
catch(SQLException e)
{
System.out.println(e.toString());
}
catch(ClassNotFoundException e)
{
System.out.println(e.toString());
}
}
public void actionPerformed(ActionEvent e)
{
/*int m=Integer.parseInt(lt1.getText());
String n=lt2.getText();
int o=Integer.parseInt(lt3.getText());
String p=lt4.getText();
int q=Integer.parseInt(lt5.getText());*/

String str="select *from student_det1 where roll_no='"+lt1.getText()+ "'";
System.out.println(str);
try
{
rs=s.executeQuery(str);
while(rs.next())
{
lt2.setText(rs.getString(2));
lt3.setText(rs.getString(3));
lt4.setText(rs.getString(4));
lt5.setText(rs.getString(5));
}
}
catch(SQLException ee)
{
System.out.println(ee.toString());
}
}
public static void main(String args[])
{
Test t=new Test();
t.setSize(500,600);
t.setVisible(true);
}
}

import java.net.*;

class Gotest
{
public static void main(String agrs[]) throws MalformedURLException
{
URL hp = new URL("http://www.javapgms.blogspot.com/Array.html");
System.out.println("Protocol : " +hp.getProtocol());
System.out.println("Port : " +hp.getHost());
System.out.println("Host : " + hp.getHost());
System.out.println("File : " +hp.getFile());
}
}

/*

getProtocol() : Returns the protocal identifier of the given URL object.
getPort() : Returns the integer value of the port number of the URL Object. If the port is not set the it returns -1.
getHost() : Returns The Host Name.
getFile() : Returns The file Name.
getRef() : Returns The reference component

/* Java Program To Fetch The Url Of Any Site */

import java.io.*;
import java.net.*;

public class fetchUrl
{
public static void main(String args[])
{
try
{
if(args.length !=1)
{
System.out.println("Usage: java fetchUrl < URL such as http://www.javapgms.blogspot.com>");
System.exit(0);
}
System.out.println("Hello");
URL url = new URL (args[0]);
System.out.println("\n Fetching URL :" +args[0] +"\n");
BufferedReader br = new BufferedReader(new InputStreamReader(url.openStream()));
String strline;
while((strline = br.readLine())!=null)
{
System.out.println(strline);
}
br.close();
}
catch(MalformedURLException mue)
{
System.out.println("Unknown URL");
}

catch(IOException ioe)
{
System.out.println("IO Error");
}
}
}

/* Java Program To Move a Shape say Oval from the bottom of the applet to the center, a vertical scroll in an infinite loop ie once the shape reaches the denter it goes back to the bottom and repeats the path */

import java.awt.*;
import java.applet.*;

public class VertiScroll extends Applet implements Runnable
{
int x,y;
Dimension size;

public void init()
{
//set initial co-ordinates for message
x = 230;
y = 450;
//creates new thread
Thread t = new Thread(this);
t.start();
}
public void run()
{
while (true)
{
try
{
/*initialize size to contain the current size of the applet window */

size = getSize();
/* if co-ordinate of the oval is lesser than reset the height of the applet the x coordinate to a value say 200 else decrement y */

if(y< 200)
y = 450;
y--;
Thread.sleep(20);
}
catch(InterruptedException e)
{
}
repaint();
}
}

public void paint(Graphics g)
{
g.setColor(Color.red);
g.fillOval(x,y,40,50);
}
}

/*< applet code=VertiScroll Width=500 Height = 500>< /applet>*/

/* Program In Java To Display A text and to scroll the text from left to right, display the text as colored */

import java.awt.*;
import java.applet.*;

public class HoriScroll2 extends Applet implements Runnable
{
String message = "Pay-Per-Play Starts on Feburary....";
int x,y;
Dimension size;

public void init()
{
//set initial co-ordinates for message
x = 300;
y = 50;
//creates new thread
Thread t = new Thread(this);
t.start();
}
public void run()
{
while (true)
{
try
{
/*initialize size to contain the current size of the applet window */

size = getSize();
/* if co-ordinate of the text is lesser than a value say 5 reset the width of the applet the x coordinate to 500 else decrement x */

if(x< 5)
x = 500;
x--;
Thread.sleep(50);
}
catch(InterruptedException e)
{
}
repaint();
}
}

public void paint(Graphics g)
{
g.setFont(new Font("Terminal",Font.BOLD|Font.ITALIC,26));
g.setColor(Color.green);
g.drawString(message,x,y);
}
}

/*< applet code=HoriScroll2 Width=500 Height = 500>< /applet>*/

/* Program In Java To Display A text and to scroll the text from right to left, display the text as colored */

import java.awt.*;
import java.applet.*;

public class HoriScroll extends Applet implements Runnable
{
String message = "Lionel Cyril ....";
int x,y;
Dimension size;

public void init()
{
//set initial co-ordinates for message
x = 10;
y = 50;
//creates new thread
Thread t = new Thread(this);
t.start();
}
public void run()
{
while (true)
{
try
{
/*initialize size to contain the current size of the applet window */

size = getSize();
/* if co-ordinate of the text is greater than reset the width of the applet the x coordinate to 10 else increment x */

if(x>size.width)
x = 0;
x++;
Thread.sleep(50);
}
catch(InterruptedException e)
{
}
repaint();
}
}

public void paint(Graphics g)
{
g.setFont(new Font("Monotype Corsiva",Font.BOLD,24));
g.setColor(Color.red);
g.drawString(message,x,y);
}
}

/*< applet height="500" width="500" code="HoriScroll">< /applet>*/