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INDEX

SN. Program Date Signature1. Write a program to copy the content of one file to another.

2. Write a program to display record of a table product_id,product_name, product_catogries, product_price in a GUI.

3. Servlet programming

4. MultiThreading Program

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Que1:-

/* @author BOSS

*/

import java.io.*;

public class File_copy

{

public static void main(String[] arg) throws FileNotFoundException, IOException

{

FileInputStream dis;

FileOutputStream dos;

File f=new File("first.txt");

File f1=new File("second.txt");

dos=new FileOutputStream(f);

dis=new FileInputStream(f);

String str="this is a test file";

byte b = 0;

dos.write(str.getBytes());

dos.close();

dos=new FileOutputStream(f1);

try

{

while((b=(byte)dis.read())!=-1)

{ dos.write(b);

}

}

catch(FileNotFoundException e)

{

System.out.println("file not found");

}

dis.close();

dos.close();

}

}

Que2:-/*

* @author Sachin

*/

import java.sql.*;

import java.util.*;

import java.awt.*;

import java.applet.*;

import java.awt.event.*;

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import java.util.logging.Level;

import java.util.logging.Logger;

public class Connection_Demo extends Applet implements ActionListener

{

TextField tp_id,tp_name,tp_cat,tp_price;

Label lp_id,lp_name,lp_cat,lp_price;

Button bt;public void init()

{

tp_id= new TextField();

lp_id=new Label("product_id");

add(lp_id);

add(tp_id);

tp_name= new TextField();

lp_name=new Label("product_name");

add(lp_name);

add(tp_name);

tp_cat= new TextField();

lp_cat=new Label("product_categories");

add(lp_cat);

add(tp_cat);

tp_price= new TextField();

lp_price=new Label("product_price");

add(lp_price);

add(tp_price);

bt=new Button("show");

add(bt);

bt.addActionListener(this);

}

public void actionPerformed(ActionEvent e){

Connection conn;

Statement stmt;

int id,p_price;

String p_id,p_cat,p_name;

try

{

Class.forName("org.apache.derby.jdbc.ClientDriver") ;

conn=DriverManager.getConnection("jdbc:derby://localhost:1527/Sachin","sachin","sachin");

stmt=conn.createStatement();

ResultSet rs = rs=stmt.executeQuery("select * from app.PRODUCT");

while(rs.next()){

id=rs.getInt(1);

p_name=new String(rs.getString(2));

p_cat=new String(rs.getString(3));

p_price=rs.getInt(4);

tp_id.setText("id");

tp_name.setText(p_name);

tp_cat.setText(p_cat);

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}

} catch (SQLException ex) {

Logger.getLogger(Connection_Demo.class.getName()).log(Level.SEVERE, null, ex);

}

catch (ClassNotFoundException ex) {

Logger.getLogger(Connection_Demo.class.getName()).log(Level.SEVERE, null, ex);

}

}

}

Q3:-Servlet Program

Config file---

TestServlet

TestServlet

TestServlet

/test

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Java file:---

import java.io.*;

import javax.servlet.*;

import javax.servlet.http.*;

public class TestServlet extends HttpServlet {

public void doGet(HttpServletRequest request, HttpServletResponse response) throws

IOException, ServletException {

response.setContentType("text/html");

PrintWriter out = response.getWriter();

out.println("hello world");

}

public void doPost(HttpServletRequest request, HttpServletResponse response) throws

IOException, ServletException {

doGet(request, response);

}

}

Q4. Threading program

//C:\java

class t1 extends Thread

{

public void run()

{

for(int i=0;i

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class t2 extends Thread

{

public void run()

{

for(int j=0;j