f1 = TestC2.tval;
  public static int test(int n) {    //    TestC2.ppp();    int f1 = TestC2.tval;    //    System.out.println(" In test: tval = " + f1);    TestC2.tval += n;    //    TestC2.ppp();    f1 = TestC2.tval;    //    System.out.println(" In test: tval = " + f1);    return TestC2.tval;  }