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src/main/java/cs425/mp2/Member.java

 package cs425.mp2;
 
 import java.io.*;
-import java.net.DatagramPacket;
 import java.net.Socket;
 import java.net.UnknownHostException;
 import java.util.*;
@@ -33,8 +32,21 @@ public class Member extends Thread {
             logger.info("Member " + memberInfo.getHost() + " started");
         }
 
+        /*
+        this function has two responsibilities:
+        - Ping random k (=4) members adjacent to it
+        - Wait for user command from commandline
+         */
         ExecutorService executors = Executors.newFixedThreadPool(3);
+        SWIMPing(executors);
 
+        while (true) {
+            readCommand();
+        }
+
+    }
+
+    protected void SWIMPing(ExecutorService executors) {
         executors.execute(new Runnable() {
             @Override
             public void run() {
@@ -48,14 +60,9 @@ public class Member extends Thread {
                 }
             }
         });
-
-        while (true) {
-            readCommand();
-        }
-
     }
 
-    private void readCommand() {
+    protected void readCommand() {
         BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
         String command = null;
         try {