refactor : separate class

src/main/java/com/mycompany/app/App.java

                         //  Create newNode When probe new IP
                         Node newNode = node.getClass().newInstance();
                         newNode.eip = (String)newPacket.eip;  //    Insert "eip" in newNode
-                        newNode.source.
+                        newNode.
                         networkNode.add(newNode);
                         
                     } catch (InstantiationException e) {

src/main/java/com/mycompany/app/Eips.java

+package com.mycompany.app;
+class Eips{
+    String ip;
+    int port;
+    String getSourceIp(){
+        return ip;
+    }
+    int getSourcePort(){
+        return port;
+    }
+    void setSourcePort(int num){
+        port = num;
+    }
+}

src/main/java/com/mycompany/app/Nips.java

+package com.mycompany.app;
+class Nips{
+    String ip;
+    int port;
+    String getDestIp(){
+        return ip;
+    }
+    int getDestPort(){
+        return port;
+    }
+    void SetDestIp(String str){
+        ip = str;
+    }
+    void SetDestPort(int num){
+        port = num;
+    }
+}