| 11 | |
| 12 | public class FamilyVsExactType { |
| 13 | static void test(Object x) { |
| 14 | System.out.println( |
| 15 | "Testing x of type " + x.getClass()); |
| 16 | System.out.println( |
| 17 | "x instanceof Base " + (x instanceof Base)); |
| 18 | System.out.println( |
| 19 | "x instanceof Derived " + (x instanceof Derived)); |
| 20 | System.out.println( |
| 21 | "Base.isInstance(x) " + Base.class.isInstance(x)); |
| 22 | System.out.println( |
| 23 | "Derived.isInstance(x) " + |
| 24 | Derived.class.isInstance(x)); |
| 25 | System.out.println( |
| 26 | "x.getClass() == Base.class " + |
| 27 | (x.getClass() == Base.class)); |
| 28 | System.out.println( |
| 29 | "x.getClass() == Derived.class " + |
| 30 | (x.getClass() == Derived.class)); |
| 31 | System.out.println( |
| 32 | "x.getClass().equals(Base.class)) "+ |
| 33 | (x.getClass().equals(Base.class))); |
| 34 | System.out.println( |
| 35 | "x.getClass().equals(Derived.class)) " + |
| 36 | (x.getClass().equals(Derived.class))); |
| 37 | } |
| 38 | public static void main(String[] args) { |
| 39 | test(new Base()); |
| 40 | test(new Derived()); |