Fixed the Scoring issue

app/src/main/java/com/example/androidprojectcollection/Match3Exercise.java

@@ -311,6 +311,8 @@ public class Match3Exercise extends AppCompatActivity {
             @Override
             public void onClick(View v) {
                 buttonLabeler();
+                score=0;
+                tv.setText("Score: " + score);
             }
         });