diff --git a/src/application/GanswerHttp.java b/src/application/GanswerHttp.java
index 9341d72..c004171 100644
--- a/src/application/GanswerHttp.java
+++ b/src/application/GanswerHttp.java
@@ -12,42 +12,42 @@ public class GanswerHttp {
 	static int maxSparqlNum = 3;
 	static int defaultPort = 9999;
 	public static void main(String[] args) throws Exception {  
-		//step 1: initialize the server with a given port
-		if(args.length>0){
-			for(int k=0;k<args.length;k++){
-				String[] paras = args[k].split("=");
-				if(paras[0].startsWith("port")){
-					try{
-						defaultPort = Integer.parseInt(paras[1]);
-					}
-					catch(Exception e){
-						System.out.println("Port should be an Integer. Using default port 9999 instead.");
-						defaultPort = 9999;
-					}
+	//step 1: initialize the server with a given port
+	if(args.length>0){
+		for(int k=0;k<args.length;k++){
+			String[] paras = args[k].split("=");
+			if(paras[0].startsWith("port")){
+				try{
+					defaultPort = Integer.parseInt(paras[1]);
 				}
-				else if(paras[0].startsWith("maxAnswerNum")){
-					try{
-						maxAnswerNum = Integer.parseInt(paras[1]);
-					}
-					catch(Exception e){
-						System.out.println("maxAnswerNum should be an Integer. Using default value 100 instead.");
-						maxAnswerNum = 100;
-					}
+				catch(Exception e){
+					System.out.println("Port should be an Integer. Using default port 9999 instead.");
+					defaultPort = 9999;
 				}
-				else if(paras[0].startsWith("maxSparqlNum")){
-					try{
-						maxSparqlNum = Integer.parseInt(paras[1]);
-					}
-					catch(Exception e){
-						System.out.println("maxSparqlNum should be an Integer. Using default value 3 instead.");
-						maxSparqlNum = 9999;
-					}
+			}
+			else if(paras[0].startsWith("maxAnswerNum")){
+				try{
+					maxAnswerNum = Integer.parseInt(paras[1]);
+				}
+				catch(Exception e){
+					System.out.println("maxAnswerNum should be an Integer. Using default value 100 instead.");
+					maxAnswerNum = 100;
 				}
-				else{
-					System.out.println("Args "+k+" is not a valid parameter!");
+			}
+			else if(paras[0].startsWith("maxSparqlNum")){
+				try{
+					maxSparqlNum = Integer.parseInt(paras[1]);
 				}
+				catch(Exception e){
+					System.out.println("maxSparqlNum should be an Integer. Using default value 3 instead.");
+					maxSparqlNum = 9999;
+				}
+			}
+			else{
+				System.out.println("Args "+k+" is not a valid parameter!");
 			}
 		}
+	}
         Server server = new Server(defaultPort);  
         
         //step 2: attach gAnswer function handler to the server