update: testing and result finding quest

tests/test6.java

@@ -0,0 +1,13 @@
+public class test6{
+    public static void main(String[] args) {
+        int x = 10;          // Line 3
+        int y = 0;           // Line 4
+        if (x > 5) {         // Line 5
+            if (x > 8) {     // Line 6
+                y = x * 2;   // Line 7
+            }
+        }
+        int z = y + 1;       // Line 10
+        System.out.println(z); // Line 11
+    }
+}