Make sure the last submitted is not the same!

Co-authored-by: sigonasr2 <sigonasr2@gmail.com>

sigPlace.java

@@ -105,6 +105,7 @@ public class sigPlace {
                 try {
                     Robot r = new Robot();
                     Reader lastReader = null;
+                    Reader lastSubmittedReader = null;
                     int matches=0;
                     final int EXPECTED_MATCHES=7;
                     boolean submitted=false;
@@ -135,7 +136,7 @@ public class sigPlace {
                                     matches=0;
                                     submitted=false;
                                 }
-                                if (matches>=EXPECTED_MATCHES&&!submitted) {
+                                if (matches>=EXPECTED_MATCHES&&!submitted&&!lastSubmittedReader.equals(result)) {
                                     System.out.println("Data is reasonable, prepare for submitting...");
                                     try {
                                         POSTRequest postRes = new POSTRequest("http://"+args[1]+"/uploadform.html",temp);
@@ -144,6 +145,7 @@ public class sigPlace {
                                             playSound(Paths.get("ding.wav"));
                                             System.out.println("Successful!");
                                             submitted=true;
+                                            lastSubmittedReader=result;
                                         }
                                     } catch (FailedResponseException e) {
                                         System.out.println("Failed! "+e.getMessage());