deffie hellman algorithm simplest way in JAVA

	//Client
	import java.io.DataInputStream;
	import java.io.DataOutputStream;
	import java.io.IOException;
	import java.net.Socket;
	import java.util.Scanner;
	import java.util.concurrent.ThreadLocalRandom;
	/*
	@author Jagyasi
	*/
	public class DH_CSCL4 {
	public static int BintoDec(int n){
	int result=0;
	int pow_val=0;
	while(n>0){
	int rem=n%10;
	result+=((int)Math.pow(2, pow_val))*rem ;
	pow_val++;
	n=n/10;
	}
	return result;
	}
	public static boolean isPrime(int n) {
	boolean flag = false;
	for (int i = 2; i < n; i++) {
	if (n % i == 0) {
	flag = false;
	break;
	} else {
	flag = true;
	}
	}
	return flag;
	}
	public static void main(String[] args) throws IOException {
	Socket s=new Socket("localhost",6646);
	Scanner in=new Scanner(System.in);
	DataInputStream din=new DataInputStream(s.getInputStream());
	DataOutputStream dout=new DataOutputStream(s.getOutputStream());
	int gen,prime;
	prime = ThreadLocalRandom.current().nextInt(2, 9 + 1);
	System.out.println("Prime"+prime);
	gen=ThreadLocalRandom.current().nextInt(1,prime);
	System.out.println("Generator"+gen);
	if(isPrime(prime)){
	dout.writeInt(gen);
	dout.writeInt(prime);
	int a=ThreadLocalRandom.current().nextInt(2,8);
	int ApubKey=(int) ((Math.pow(gen, a)) % prime);
	System.out.println("efsdf "+ApubKey);
	dout.writeInt(ApubKey);
	int BpubKey=din.readInt();
	System.out.println(BpubKey+" frsfdsf");
	System.out.println("Enter numerical data...");
	int Adat=in.nextInt();
	int coded=Integer.parseInt(Integer.toBinaryString(Adat));
	int binApub=Integer.parseInt(Integer.toBinaryString(ApubKey));
	int packet=coded ^ binApub;
	dout.writeInt(BintoDec(packet));
	System.out.println("Sent...");
	}else {
	System.out.println("error....");
	}
	}
	}
	//Server
	import java.util.concurrent.ThreadLocalRandom;
	import java.io.DataInputStream;
	import java.io.DataOutputStream;
	import java.io.IOException;
	import java.net.ServerSocket;
	import java.net.Socket;
	/**
	*
	* @author Jagyasi
	*/
	public class DH_CSCL4_2 {
	public static void main(String[] args) throws IOException {
	ServerSocket ss = new ServerSocket(6646);
	Socket s = ss.accept();
	int gen = 0, prime = 0;
	int ApubKey;
	DataInputStream din = new DataInputStream(s.getInputStream());
	DataOutputStream dout = new DataOutputStream(s.getOutputStream());
	gen = din.readInt();
	prime = din.readInt();
	ApubKey=din.readInt();
	int b=ThreadLocalRandom.current().nextInt(2,8);
	int BpubKey=(int) (Math.pow(gen, b)%prime);
	dout.writeInt(BpubKey);
	int packet=din.readInt();
	int decoded=Integer.parseInt(Integer.toBinaryString(packet));
	int binBpub=Integer.parseInt(Integer.toBinaryString(BpubKey));
	int data=decoded^binBpub;
	System.out.println("Recieved....."+DH_CSCL4.BintoDec(data));
	}
	}

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