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Implement using Socket Programming (TCP/UDP) in Java

April 29, 2012 by ProjectsGeek Leave a Comment

Implement using Socket Programming (TCP/UDP) in Java

 

Aim : Implement using Socket Programming (TCP/UDP) in C / C++ / JAVA.
a) Addition of digits of a given Number.
b) Perform String Operations. (Length, Compare, Concatenation, Palindrome,  Substring)
c) Find the Factorial of a Number.
Source Code for Socket Programming :
 
Client Source Code :
 
package com.prac.prac;  
 import java.io.BufferedReader;  
 import java.io.InputStreamReader;  
 import java.io.PrintStream;  
 import java.net.ServerSocket;  
 import java.net.Socket;  
 public class client {  
      public static void main(String[] args) {  
           int port=5001;  
           try {  
                Socket clientSocket=new Socket("localhost",port);  
                System.out.println("Client Started");  
                InputStreamReader isr = new InputStreamReader(System.in);  
                BufferedReader br = new BufferedReader(isr);  
                PrintStream toServer=new PrintStream(clientSocket.getOutputStream());  
                BufferedReader fromServer=new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));  
                String menu="SOCKET PROGRAMMING MENU\n1.FACTORIAL\n2.SUM OF DIGITS OF A NO\n3.String Operation\n4.EXIT\nENTER UR CHOICE";  
                int choice=-1;  
                do  
                {  
                     toServer.flush();  
                     System.out.println(menu);  
                     choice=Integer.parseInt(br.readLine());  
                     toServer.println(choice);  
                     toServer.flush();  
                     switch(choice)  
                     {  
                     case 1:  
                          System.out.println("ENTER A NO:");  
                          int no=Integer.parseInt(br.readLine());  
                          toServer.println(no);  
                          int result=Integer.parseInt(fromServer.readLine());  
                          System.out.println("FACTORIAL IS:"+result);  
                          break;  
                     case 2:  
                          System.out.println("ENTER A NO:");  
                          no=Integer.parseInt(br.readLine());  
                          toServer.println(no);  
                          result=Integer.parseInt(fromServer.readLine());  
                          System.out.println("SUM OF EACH DIGITS IS:"+result);  
                          break;  
                     case 3:  
                          String stringmenu="STRING OPERATION MENU\n1.LENGTH\n2.COMPARE\n3.CONCATENATE\n4.IS STRING IS PALINDROME\n5.SUBSTRING\n6.EXIT\nENTER UR CHOICE";  
                          int stringChoice;  
                          do  
                          {  
                               System.out.println(stringmenu);  
                               stringChoice=Integer.parseInt(br.readLine());  
                               toServer.println(stringChoice);  
                               toServer.flush();  
                               switch(stringChoice)  
                               {  
                               case 1:  
                                    System.out.println("ENTER A String:");  
                                    String str=br.readLine();  
                                    toServer.println(str);  
                                    result=Integer.parseInt(fromServer.readLine());  
                                    System.out.println("LENGTH IS:"+result);  
                                    break;  
                               case 2:  
                                    System.out.println("ENTER First String:");  
                                    String first_str=br.readLine();  
                                    toServer.println(first_str);  
                                    System.out.println("ENTER Second String:");  
                                    String second_str=br.readLine();  
                                    toServer.println(second_str);  
                                    String str_result=fromServer.readLine();  
                                    System.out.println(str_result);  
                                    break;  
                               case 3:  
                                    System.out.println("ENTER First String:");  
                                    first_str=br.readLine();  
                                    toServer.println(first_str);  
                                    System.out.println("ENTER Second String:");  
                                    second_str=br.readLine();  
                                    toServer.println(second_str);  
                                    str_result=fromServer.readLine();  
                                    System.out.println("CONCANATED STRING IS"+str_result);  
                                    break;  
                               case 4:  
                                    System.out.println("ENTER A String:");  
                                    str=br.readLine();  
                                    toServer.println(str);  
                                    str_result=fromServer.readLine();  
                                    System.out.println("PALINDROME RESULT:"+str_result);  
                                    break;  
                               case 5:  
                                    System.out.println("ENTER First String:");  
                                    first_str=br.readLine();  
                                    toServer.println(first_str);  
                                    System.out.println("ENTER Second(it is checkd as substring) String:");  
                                    second_str=br.readLine();  
                                    toServer.println(second_str);  
                                    str_result=fromServer.readLine();  
                                    System.out.println("Substring Result:"+str_result);  
                                    break;  
                               case 6:  
                                    break;  
                               }  
                          }while(stringChoice!=6);  
                          break;  
                     case 4:  
                          break;  
                     default:  
                          System.out.println("INVALID CHOICE");  
                     }  
                }while(choice!=4);  
           } catch (Exception e) {  
                // TODO Auto-generated catch block  
           }  
      }  
 }

 

Server Source Code :

package com.prac.prac;  
 import java.io.*;  
 import java.net.*;  
 public class server {  
      /**  
       * @param args  
       */  
      public static void main(String[] args) {  
           int port=5001;  
           try {  
                ServerSocket serverSocket=new ServerSocket(port);  
                System.out.println("SERVER WAITING");  
                Socket clientSocket=serverSocket.accept();  
                BufferedReader fromClient=new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));  
                PrintStream toClient=new PrintStream(clientSocket.getOutputStream());  
                while(true)  
                {  
                     int choice=Integer.parseInt(fromClient.readLine());  
                     System.out.print(choice);  
                     switch(choice)  
                     {  
                     case 1:  
                          int no=Integer.parseInt(fromClient.readLine());  
                          int result=1;  
                          if (no!=0 && no!=1){  
                               for(int i=2;i<=no;i++)  
                                    result*=i;  
                          }  
                          toClient.flush();  
                          toClient.println(result);  
                          break;  
                     case 2:  
                          no=Integer.parseInt(fromClient.readLine());  
                          result=0;  
                          while(no!=0){  
                               result+=no%10;  
                               no/=10;  
                          }  
                          toClient.flush();  
                          toClient.println(result);  
                          break;  
                     case 3:  
                          int stringChoice;  
                          do{  
                               stringChoice=Integer.parseInt(fromClient.readLine());;  
                               switch(stringChoice){  
                               case 1:  
                                    String first_str=fromClient.readLine();  
                                    result=first_str.length();  
                                    toClient.flush();  
                                    toClient.println(result);  
                                    break;  
                               case 2:  
                                    first_str=fromClient.readLine();  
                                    String second_str=fromClient.readLine();  
                                    result=first_str.compareTo(second_str);  
                                    String str_result="";  
                                    if (result ==0)  
                                         str_result="Both are equal";  
                                    else if (result<0)  
                                         str_result=second_str+" is greater";  
                                    else   
                                         str_result=first_str+" is greater";  
                                    toClient.flush();  
                                    toClient.println(str_result);  
                                    break;  
                               case 3:  
                                    first_str=fromClient.readLine();  
                                    second_str=fromClient.readLine();  
                                    result=first_str.compareTo(second_str);  
                                    str_result=first_str+second_str;  
                                    toClient.flush();  
                                    toClient.println(str_result);  
                                    break;  
                               case 4:  
                                    first_str=fromClient.readLine();  
                                    int i,j;  
                                    for(i=0,j=first_str.length()-1;i<=j;i++,j--){  
                                         if(first_str.charAt(i)!=first_str.charAt(j))  
                                              break;  
                                    }  
                                    if (i<j) <br="">                                         str_result="NO";  
                                    else  
                                         str_result="YES";  
                                    toClient.flush();  
                                    toClient.println(str_result);  
                                    break;  
                               case 5:  
                                    first_str=fromClient.readLine();  
                                    second_str=fromClient.readLine();  
                                    result=first_str.indexOf(second_str);  
                                    if(result==-1)  
                                         str_result="NO";  
                                    else  
                                         str_result="YES";  
                                    toClient.flush();  
                                    toClient.println(str_result);  
                                    break;  
                               case 6:  
                                    break;  
                               }  
                          }while(stringChoice!=6);  
                          break;  
                     case 4:  
                          break;  
                     }  
                }  
           } catch (Exception e) {  
                // TODO Auto-generated catch block  
           }  
      }  
 }

 

Output of the Program Socket :

SERVER WAITING…..

Client Started
SOCKET PROGRAMMING MENU
1.FACTORIAL
2.SUM OF DIGITS OF A NO
3.String Operation
4.EXIT
ENTER UR CHOICE
1
ENTER A NO:
3
FACTORIAL IS:6
SOCKET PROGRAMMING MENU
1.FACTORIAL
2.SUM OF DIGITS OF A NO
3.String Operation
4.EXIT
ENTER UR CHOICE

Other Projects to Try:

  1. To Perform various String Operation in Java
  2. File Handling and IO Handling in Java Programming
  3. Socket programming in Java
  4. Implement Conflation Algorithm using File Handling in Java
  5. To Implement Web Crawler in Java BE(IT) CLP-II Pratical

Filed Under: CLP-II

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