update: testing and result finding quest

tests/test9.java

@@ -0,0 +1,10 @@
+public class test9{
+    public static void main(String[] args) {
+        int x = 5;           // Line 3
+        int y = 10;          // Line 4
+        int z = x + 1;       // Line 5
+        int w = y + 2;       // Line 6
+        System.out.println(z); // Line 7
+        System.out.println(w); // Line 8
+    }
+}