BCD to Hexadecimal using Socket

BCD to Hexadecimal using Socket


Server Side:


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


class Server
{
 public static void main(String arr[]) throws Exception
 {
 ServerSocket ss=new ServerSocket(12345);
 System.out.println("Ready.. ");
 Socket s=ss.accept();
 System.out.println("Connection Established.. ");
 DataOutputStream dout=new DataOutputStream(s.getOutputStream());
 DataInputStream din=new DataInputStream(s.getInputStream());
 String str=din.readUTF();
 System.out.println("Received "+str);
 int index=-1,sum=0;
 String number="";
 for(int i=str.length()-1;i>=0;i--)
  {
  index++;
  sum=sum+(int )Math.pow(2,index)*Integer.parseInt(""+str.charAt(i));
  if(index==3)
   {
   index=-1;
   number=sum+number;
   sum=0;
   }
  }
 if(index!=3)
  number=sum+number;
 System.out.println("Decimal "+number);
 sum=Integer.parseInt(number);
 str="";
 while(sum!=0)
  {
  int c=sum%16;
  System.out.println("c= "+c);
  if(c<10)
   str=c+str;
  else
   str=(char)('A'+(c-10))+str; 
  sum=sum/16;
  }
 System.out.println("Hex "+str);
 dout.writeUTF(str);
 dout.flush();
 din.close();
 dout.close();
 s.close();
 ss.close(); 
 }
}



Client Side:



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


class Client
{
 public static void main(String arr[]) throws Exception
 {
 Socket s=new Socket("localhost",12345);
 DataOutputStream dout=new DataOutputStream(s.getOutputStream());
 DataInputStream din=new DataInputStream(s.getInputStream());

 System.out.print("Enter the BCD number: ");
 Scanner sc=new Scanner(System.in);
 String str=sc.nextLine();

 dout.writeUTF(str);
 dout.flush();
 
 str=din.readUTF();
 System.out.println("Required Hexadecimal: "+str);
 din.close();
 dout.close();
 s.close(); 
 }
}



OUTPUT:

Client:

Z:\Network>javac Client.java

Z:\Network>java Client
Enter the BCD number: 01110110
Required Hexadecimal: 4C


Server:
Z:\Network>
Z:\Network>java Server
Ready..
Connection Established..
Received 01110110
Decimal 076
c= 12
c= 4
Hex 4C