What is the result(pre-increment operators)? : Questions « Utility Classes « SCJP

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public class Dark {
    int x = 3;
    public static void main(String[] args) {
      new Dark().go1();
    }
    void go1() {
      int x;
     go2(++x);
   }
   void go2(int y) {
     int x = ++y;
     System.out.println(x);
   }
 }