libjava/testsuite/libjava.lang/pr179.java

   1 // Extended regression test for the PR 179.
   2 //
   3 // This tests the ".class" language syntax, initialization behaviour for
   4 // Class.isInstance() and Class.isAssignableFrom(), and isAssignableFrom()
   5 // functionality in the event that an interface argument that is not
   6 // implemented by any loaded class is given.
   7 // Note that the desired output changed from 1.4 to 1.5.
   8
   9 class A
  10 {
  11   static
  12   {
  13     System.out.println("A initialized");
  14   }
  15 }
  16
  17 interface IA {}
  18
  19 class B implements IA
  20 {
  21   static
  22   {
  23     System.out.println("B initialized");
  24   }
  25 }
  26
  27 class C
  28 {
  29   static
  30   {
  31     System.out.println("C initialized");
  32   }
  33 }
  34
  35 interface IB {}
  36
  37 public class pr179
  38 {
  39   public static void main(String[] args)
  40   {
  41     System.out.println (A.class.isAssignableFrom (Object.class));
  42     System.out.println (IB.class.isAssignableFrom (B.class));
  43     System.out.println (IA.class.isAssignableFrom (B.class));
  44     A a = new A();
  45     System.out.println (C.class.isInstance (a));
  46     C c = new C();
  47     System.out.println (C.class.isInstance (c));
  48   }
  49 }