refactor : adjust eip, nip method type

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

@@ -8,7 +8,10 @@ class Eips{
     int getSourcePort(){
         return port;
     }
-    void setSourcePort(int num){
-        port = num;
+    void setSourceIp(Object obj){
+        ip = (String)obj;
+    }
+    void setSourcePort(Object obj){
+        port = (int)obj;
     }
 }

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

@@ -8,10 +8,10 @@ class Nips{
     int getDestPort(){
         return port;
     }
-    void SetDestIp(String str){
-        ip = str;
+    void SetDestIp(Object obj){
+        ip = (String)obj;
     }
-    void SetDestPort(int num){
-        port = num;
+    void SetDestPort(Object obj){
+        port = (int)obj;
     }
 }