54240326

7/28/2019 54240326

1/28

Downloaded from www.pencilji.com


1. Program for implementing a stack & to perform Push & Popoperations

import java.io.*;

class st

{int top=0;int max=0,i=0,n=0;int stk[];

BufferedReader input=new BufferedReader(new InputStreamReader(System.in));st()

{try{

System.out.println("Enter the size of the stack");

max=Integer.parseInt(input.readLine());}

catch(IOException e){}stk=new int[max];

}

public void add(){

try{if(top0)System.out.println("Deleted element is"+stk[--top]);

else

System.out.println("Stack underflow");

}public void display(){ if(top==0)

System.out.println("Stack is empty");

else{

for(int i=0;i

7/28/2019 54240326

2/28



}}

}class Stack

{

public static void main(String args[])throws IOException{

String data;int ch=0;

st a=new st();BufferedReader input=new BufferedReader(new InputStreamReader(System.in));while(true)

{System.out.println("1:PUSH 2:POP 3:DISPLAY 4:EXIT");

System.out.println("Enter ur choice");try{

ch=Integer.parseInt(input.readLine());}catch(IOException e){}

switch(ch){

case 1:a.add();

break;case 2:a.delete();

break;case 3 :a.display();

break;

case 4 :System.exit(0);}

}}

}

7/28/2019 54240326

3/28



Output:

C:\cd jdk1.3\bin>javac Stack.java

C:\JDK1.3\BIN>java Stack

Enter the size of the stack2

1:PUSH 2:POP 3:DISPLAY 4:EXITEnter ur choice

1Enter the element of the stack23

1:PUSH 2:POP 3:DISPLAY 4:EXITEnter ur choice

145

1:PUSH 2:POP 3:DISPLAY 4:EXITEnter ur choice3

elements are 23elements are 45

1:PUSH 2:POP 3:DISPLAY 4:EXIT

Enter ur choice2

Deleted element is 451:PUSH 2:POP 3:DISPLAY 4:EXITEnter ur choice

4C:\JDK1.3\BIN>

7/28/2019 54240326

4/28



2. Program to implement the following operations on a QueueAdd an element

Delete an elementDisplay the elements

import java.io.*;class Queue1{public static void main(String[] args)throws IOException

{int a[]=new int [10];

int pos=0,n=0,j;BufferedReader b=new BufferedReader(new InputStreamReader(System.in));while(true)

{System.out.println("1.INSERTION");

System.out.println("2.DELETION");System.out.println("3.DISPLAY");System.out.println("4.EXIT");

System.out.println("enter your choice");String choice = b.readLine();

if(choice.equals("1")){System.out.println("enter the element");

String ma = b.readLine();int d = Integer.parseInt(ma);

a[pos]=d;

pos++;n++;

}else

if(choice.equals("2")){for(j=0;j

7/28/2019 54240326

5/28



}else

if(choice.equals("4")){

System.exit(0);

}else

{System.out.println("Enter proper choice");

}}

}

}

7/28/2019 54240326

6/28



Output:

C:\JDK1.3\BIN>java Queue11.INSERTION

2.DELETION

3.DISPLAY4.EXIT

Enter your choice1

Enter the element21.INSERTION

2.DELETION3.DISPLAY

4.EXITEnter your choice

1Enter the element5

1.INSERTION2.DELETION3.DISPLAY

4.EXITEnter your choice

3Elements are: 2Elements are:5

1.INSERTION2.DELETION

3.DISPLAY4.EXITEnter your choice

21.INSERTION

2.DELETION3.DISPLAY4.EXIT

Enter your choice

3Elements are: 51.INSERTION2.DELETION

3.DISPLAY4.EXIT

Enter your choice4

7/28/2019 54240326

7/28



3. Program to implement the following operations on a singly linked listCreate a List

Add a Node to the Front of the ListAdd a Node to the Back of the List

Delete a Specified NodeDisplay a List

import java.io.*;

import java.util.*;class Link1{

LinkedList l1=new LinkedList();BufferedReader br=new BufferedReader(new InputStreamReader(System.in));

String input;

public void create(int size)throws IOException{for(int i=0;i

7/28/2019 54240326

8/28



l1.remove(pos);}

public void display()

{

System.out.println("Elements in the list:");System.out.println(l1);

}}

class Link14{

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

int choice;BufferedReader br=new BufferedReader(new InputStreamReader(System.in));

Link1 l=new Link1();

while(true)

{System.out.println("1.CREATE LINKED LIST");System.out.println("2.ADD FIRST");

System.out.println("3.ADD LAST");System.out.println("4.REMOVE");

System.out.println("5.DISPLAY");System.out.println("6.EXIT");System.out.println("Enter your choice:");

choice=Integer.parseInt(br.readLine());

switch(choice){

case 1:System.out.println("Enter the size:");

int s=Integer.parseInt(br.readLine());l.create(s);

break;case 2:l.begin();

break;

case 3:l.last();break;

case 4:l.delete();break;

case 5:l.display();

break;case 6:System.exit(0);

default:System.out.println("Enter Proper C hoice");}

7/28/2019 54240326

9/28



}}

}

Output:

7/28/2019 54240326

10/28



C:\JDK1.3\BIN>java Link14

1.CREATE LINKED LIST2.ADD FIRST

3.ADD LAST

4.REMOVE5.DISPLAY

6.EXITEnter your choice:

1Enter the size:2

Enter the node item:4

Enter the node item:-2

1.CREATE LINKED LIST2.ADD FIRST3.ADD LAST

4.REMOVE5.DISPLAY6.EXIT

Enter your choice:2

Enter the item to be inserted at the beginning:901.CREATE LINKED LIST

2.ADD FIRST3.ADD LAST


Enter your choice:5

Elements in the list:[90, 4, -2]1.CREATE LINKED LIST

2.ADD FIRST3.ADD LAST


Enter your choice:3

Enter the item to be inserted at the last:10

7/28/2019 54240326

11/28




3.ADD LAST4.REMOVE

5.DISPLAY

6.EXITEnter your choice:

5Elements in the list:

[90, 4, -2, 10]1.CREATE LINKED LIST2.ADD FIRST

3.ADD LAST4.REMOVE

5.DISPLAY6.EXIT

Enter your choice:4Enter the position:


3.ADD LAST4.REMOVE

5.DISPLAY6.EXITEnter your choice:

5Elements in the list:

[90, 4, 10]1.CREATE LINKED LIST2.ADD FIRST

3 ADD LAST4.REMOVE

5.DISPLAY6.EXITEnter your choice:

6

C:\JDK1.3\BIN>

7/28/2019 54240326

12/28



4. Program to implement a Producer and Consumer Problem usingThreads

import java.io.*;

class Q

{int n;boolean valueset=false;synchronized int get()

{if(!valueset)

try{

wait();

}catch (InterruptedException e1)

{System.out.println("Thread Interrupted");

}

System.out.println("get" +n);valueset=false;

notify();return n;

}

synchronized void put(int n){

if(valueset)

try{

wait();}catch (InterruptedException e2)

{System.out.println("thread interrupted");

}this.n=n;valueset=true;

System.out.println("put " +n);

notify();}

}

class Producer implements Runnable{

Q q; Thread t;Producer (Q q)

7/28/2019 54240326

13/28



{this.q=q;

t=new Thread(this, "Producer");t.start();

}

public void run(){

int i=0;while (i

7/28/2019 54240326

14/28

7/28/2019 54240326

15/28



5. Program to create an applet to scroll a text message

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

public class AB extends Applet implements Runnable

{String str;

int x,y;public void init()

{str="WELCOME TO RNSIT";x=300;

y=100;new Thread(this).start();

}public void run()

{try{

while(true){x=x-10;

if(x

7/28/2019 54240326

16/28



Output:

C:\JDK1.3\BIN>javac AB.java

C:\JDK1.3\BIN>appletviewer AB.html

Applet Viewer:AB

Applet

WELCOME TO RNSIT

Applet started.

7/28/2019 54240326

17/28



6. Develop a Java program for a Client and Server Program to do thefollowing:

1.The client requests for a file.2.The server sends the contents of the file requested.

3.The client receives the file and displays it.

// code for client program

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

public class Client{

public static void main(String args[]){Socket client=null;

BufferedReader br=null;try

{System.out.println(args[0]+" "+ args[1]);client=new Socket(args[0],Integer.parseInt(args[1]));

} catch(Exception e){}BufferedReader input=null;PrintStream output=null;

try

{input=new BufferedReader(new InputStreamReader(client.getInputStream()));output=new PrintStream(client.getOutputStream());

br=new BufferedReader(new InputStreamReader(System.in));String str=input.readLine();//get the prompt from the server

System.out.println(str);//display the prompt on the client machineString filename=br.readLine();if(filename!=null)

output.println(filename);String data;

while((data=input.readLine())!=null)

System.out.println(data);

client.close();

}catch(Exception e){

System.out.println(e);

7/28/2019 54240326

18/28



}}

}

/* Code for Server program*/

import java.net.*;

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

public class Server

{public static void main(String args[])

{

ServerSocket server=null;

try

{server=new ServerSocket(Integer.parseInt(args[0]));

} catch(Exception e){}

while(true)

{

Socket client=null;

PrintStream output=null;BufferedReader input=null;

try{

client=server.accept();} catch(Exception e){System.out.println(e);}

try{

output=new PrintStream(client.getOutputStream());input=new BufferedReader(new InputStreamReader(client.getInputStream())) ;

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

//send the command Prompt to the client

output.println("ENTER THE FILE NAME>");try

7/28/2019 54240326

19/28



{

//get the file name from the clientString filename=input.readLine();

System.out.println("Client requested file:" + filename);

try

{File f=new File(filename);

BufferedReader br=new BufferedReader(new FileReader(f));String data;

while((data=br.readLine())!=null)

{output.println(data);

}}catch(FileNotFoundException e)

{ output.println("FILE NOT FOUND");}

client.close();

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

}}

}

}

7/28/2019 54240326

20/28



Output:

C:\JDK1.3\BIN>javac C lient.javaC:\JDK1.3\BIN>javac Server.java

C:\JDK1.3\BIN>java Server 80

/* In a new prompt*/C:\JDK1.3\BIN>java Client localhost 80

Local host 80ENTER THE FILE NAME>

Server.java /*File Serever.java is displayed *//*In the server prompt*/Client requested file: Server.java

7/28/2019 54240326

21/28



7. Program to implement the Simple Client/Server Application usingRM

/*Interface Program */

import java.rmi.*;public interface TimeIntf extends Remote

{public String getTime() throws RemoteException;

public void display() throws RemoteException;}

/*Server Program */

import java.rmi.server.*;

import java.rmi.*;import java.net.*;import java.util.*;

import java.text.*;

public class TimeServer extends UnicastRemoteObject implements TimeIntf{TimeServer() throws Exception {}

public String getTime() throws RemoteException{Date dd=new Date();

SimpleDateFormat sdf;sdf=new SimpleDateFormat("hh:mm:ss");

System.out.println("date&time"+sdf.format(dd));String tt=sdf.format(dd);return tt;

}public void display() throws RemoteException

{System.out.println("Hello This Is To Demonstrate RMI ");}

public static void main (String args[] ) throws Exception{TimeServer tobj=new TimeServer();Naming.rebind("Time",tobj);

}}

7/28/2019 54240326

22/28



/*Client Program */

import java.rmi.*;public class TimeClient

{

public static void main(String args[]) throws Exception{

TimeIntf t;t=(TimeIntf)Naming.lookup("Time");

System.out.println(t.getTime());t.display();}

}

7/28/2019 54240326

23/28



Output:

C:\JDK1.3\BIN>javac TimeIntf.javaC:\JDK1.3\BIN>javac TimeServer.java

C:\JDK1.3\BIN>javac TimeClient.java

C:\JDK1.3\BIN>rmic TimeServerC:\JDK1.3\BIN>start rmiregistry

/*minimize the rmiregistry window & the prompt window*//*Open a new prompt window*/

C:\JDK1.3\BIN>java TimeClient/*Using ALT+TAB switch to the other prompt window*/

C:\JDK1.3\BIN>java TimeServerJava TimeSerever

date & time 02:19:09Hello this is to demonstrate RMI

/*Open the client prompt using ALT+TAB */

date & time 02:19:12

7/28/2019 54240326

24/28



8. Create a Java Servlet program to do the following:1. To receive employee name & telephone number from the client

browser2. To generate a response & send it to the client browser.

Create a HTML document to do the following:1. To accept employee name & telephone number2. To send them to Servlet

/* Servlet Program*/import javax.servlet.*;

import java.io.*;

public class TestServlet extends GenericServlet

{public void service(ServletRequest request, ServletResponse response)

{

try{PrintWriter out=response.getWriter();

String name=request.getParameter("name");

String phone=request.getParameter("phone");out.println("");

out.pr intln("");out.pr intln("Hello" +name);out.println("

");

out.pr intln("Your phone number is:" +phone);out.println("");

}catch(Exception e){}

}

}

/*html Program*/

Enter your name:

Enter your Telphone no:

7/28/2019 54240326

25/28



Output:

C:\JDK1.3\BIN>javac Test Servlet.java

/*Then a TestServlet.class file is created. Move this to the path below*/

C:\Apache group\Tomcat 4.1\web apps\Web Inf \ classes \TestServlet.class/*similarly move the prg11.html file to the path below*/

C:\Apache group\Tomcat4.1 \ web apps \ root \ prg11.html/* Now open the web browser*/

http://127.0.0.1:8080/prg11.html

Enter your name:

Enter your Telephone no:

submit clear
http://127.0.0.1:8080/prg11.htmlhttp://127.0.0.1:8080/prg11.htmlhttp://127.0.0.1:8080/prg11.html

7/28/2019 54240326

26/28



9. /*Create a HTML page to accept one of the three colors red,green, lue& to send this o a Servlet. Write a Java program to create Servlet to

accept the color information sent by the client s HTML page & togenerate a response.*/

/*Servlet Program*/import java.io.*;import javax.servlet.*;

public class pgm12 extends GenericServlet{

public void service(ServletRequest request,ServletResponse response) throws

ServletException,IOException{

PrintWriter out=response.getWriter();

String color=request.getParameter("r1");out.println("");

out.println("");

out.println("The color you have choosen is : " +color);

out.println("");

}

}

Select any one color BLUE

Green RED

7/28/2019 54240326

27/28



Output:

Select any one color

BLUE Green RED

Submit

The color you have chosen is: BLUE

7/28/2019 54240326

28/28


54240326

Documents