TO IMPLEMENT STOP AND WAIT PROTOCOL IN JAVA

/*
TOPIC:TO IMPLEMENT STOP AND WAIT PROTOCOL
FILENAME:slisender.java
*/
import java.io.*;
import java.net.*;
class slisender
{
public static void main(String aafhbasgj[])throws Exception
{
ServerSocket ss=new ServerSocket(6483);
Socket s=ss.accept();
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
DataInputStream in=new DataInputStream(s.getInputStream());
String msg,str1;
PrintStream p;
int no;
p=new PrintStream(s.getOutputStream());
System.out.println("Enter number of frames");
no=Integer.parseInt(br.readLine());
p.println(no);
int i=0;
while(i<no)
{
System.out.println("enter ur frame :");
msg=br.readLine();
p.println(msg);
str1=in.readLine();
System.out.println(str1);
i++;
}
ss.close();
s.close();
}
}
/*

TOPIC:TO IMPLEMENT STOP AND WAIT PROTOCOL
FILENAME: sliclient.java
*/
import java.io.*;
import java.net.*;
class sliclient
{
public static void main(String aafhbasgj[])throws Exception
{

Socket s=new Socket("localhost",6483);
String opmsg;
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
DataInputStream in=new DataInputStream(s.getInputStream());
PrintStream dos=new PrintStream(s.getOutputStream());
String msg=in.readLine();
int no=Integer.parseInt(msg);
int i=0;
while(i<no)
{
msg=in.readLine();
System.out.println(msg);
opmsg="ACK : FRAME "+i+" RECIEVED";
dos.println(opmsg);
i++;
}
s.close();
}
}