mirror of
https://github.com/autc04/Retro68.git
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404 lines
6.3 KiB
Java
404 lines
6.3 KiB
Java
/* Test interface dispatch, type checking (instanceof), and casting. */
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interface IA
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{
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String a();
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}
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interface IB extends IA
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{
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String b();
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}
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interface IC extends IB
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{
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void c();
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int d();
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IB e(int i);
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}
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interface ID
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{
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String z();
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String a();
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}
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class CA
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{
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String a()
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{
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return "CA a()";
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}
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}
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class CB implements IB
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{
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public String a()
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{
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return "CB a()";
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}
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public String b()
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{
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return "CB b()";
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}
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}
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class CC extends CB
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{
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public int d()
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{
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return 99;
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}
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}
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class CD extends CC implements IC
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{
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public String a()
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{
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return "CD a()";
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}
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public void c()
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{
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System.out.println("CD c()");
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}
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public int d()
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{
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return 6;
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}
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public IB e(int i)
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{
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if (i == 1)
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return new CB();
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else
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return new CD();
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}
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}
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class CE extends CB implements IB, ID
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{
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public String a()
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{
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return ("CE a()");
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}
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public String b()
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{
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return ("CE b()");
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}
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public String z()
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{
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return("CE z()");
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}
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}
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public class InterfaceDispatch
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{
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public static void main(String args[])
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{
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new InterfaceDispatch();
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}
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public InterfaceDispatch()
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{
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/* _Jv_InstanceOf */
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/* Object instanceof CLASS */
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Object obj = new CA();
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if (obj instanceof CA)
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{
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System.out.println ("ok 1");
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}
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else
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{
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System.out.println ("FAIL 1");
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}
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obj = new CD();
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if (!(obj instanceof CA))
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{
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System.out.println ("ok 2a");
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}
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else
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{
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System.out.println ("FAIL 2a");
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}
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if (obj instanceof CB)
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{
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System.out.println ("ok 2b");
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}
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else
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{
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System.out.println ("FAIL 2b");
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}
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/* Object instanceof INTERFACE */
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obj = new CB();
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if (!(obj instanceof IC))
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{
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System.out.println("ok 3");
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}
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else
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{
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System.out.println ("FAIL 3");
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}
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if (obj instanceof IB)
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{
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System.out.println("ok 4");
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}
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else
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{
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System.out.println ("FAIL 4");
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}
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/* InterfaceRef instanceof INTERFACE */
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IA ia = new CB();
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if (ia instanceof IB)
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{
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System.out.println("ok 5");
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}
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else
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{
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System.out.println ("FAIL 5");
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}
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if (!(ia instanceof IC))
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{
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System.out.println("ok 6");
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}
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else
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{
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System.out.println ("FAIL 6");
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}
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/* InterfaceRef instanceof CLASS */
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if (ia instanceof CB)
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{
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System.out.println("ok 7");
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}
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else
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{
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System.out.println ("FAIL 7");
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}
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if (!(ia instanceof CD))
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{
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System.out.println("ok 8");
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}
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else
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{
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System.out.println ("FAIL 8");
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}
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/* _Jv_CheckCast */
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Object obj_ca = new CA();
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Object obj_cc = new CC();
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IA ia2;
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try
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{
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ia2 = (IA) obj_cc;
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System.out.println("ok 9");
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}
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catch (ClassCastException x)
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{
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System.out.println("FAIL 9");
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}
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CD cd;
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try
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{
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cd = (CD) obj_ca;
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System.out.println("FAIL 10");
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}
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catch (ClassCastException x)
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{
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System.out.println("ok 10");
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}
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IA ia3;
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try
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{
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ia3 = (IB) obj_ca;
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System.out.println("FAIL 11");
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}
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catch (ClassCastException x)
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{
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System.out.println("ok 11");
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}
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/* _Jv_LookupInterfaceMethod */
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Object obj_cb = new CB();
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IB ib = (IB) obj_cb;
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ib.b();
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if (ib.a().equalsIgnoreCase("CB a()"))
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System.out.println("ok 12");
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else
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System.out.println("FAIL 12");
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IC ic = new CD();
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if (ic.a().equalsIgnoreCase("CD a()"))
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System.out.println("ok 13");
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else
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System.out.println("FAIL 13");
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if (ic.d() == 6)
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System.out.println("ok 14");
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else
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System.out.println("FAIL 14");
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Object ce = new CE();
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ib = (IB) ce;
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ID id = (ID) ce;
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if (ib.b().equals("CE b()") && id.a().equals("CE a()"))
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System.out.println("ok 15");
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else
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System.out.println("FAIL 15");
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String t = ((ID)ce).z();
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if (t.equalsIgnoreCase("CE z()"))
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System.out.println("ok 16");
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else
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System.out.println("FAIL 16");
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/* Array types */
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Object[] obj_a = new CC[10];
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try
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{
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CB[] ca_a = (CB[]) obj_a;
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System.out.println("ok 17");
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}
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catch (ClassCastException x)
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{
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System.out.println("FAIL 17");
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}
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if (obj_a instanceof IB[])
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{
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System.out.println("ok 18");
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}
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else
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{
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System.out.println("FAIL 18");
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}
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IB[] ib_a = new CD[5];
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try
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{
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CD[] cd_a = (CD[]) ib_a;
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System.out.println("ok 19");
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}
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catch (ClassCastException x)
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{
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System.out.println("FAIL 19");
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}
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CA[] ca_a;
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try
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{
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ca_a = (CA[]) ib_a;
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System.out.println("FAIL 20");
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}
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catch (ClassCastException x)
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{
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System.out.println("ok 20");
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}
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/* Primitive types */
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short[] short_a = new short[100];
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try
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{
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obj = short_a;
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System.out.println("ok 21");
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}
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catch (ClassCastException x)
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{
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System.out.println("FAIL 21");
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}
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try
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{
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short[] short_b = (short[]) obj;
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System.out.println("ok 22");
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}
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catch (ClassCastException x)
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{
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System.out.println("FAIL 22");
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}
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int[] short_b;
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try
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{
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short_b = (int[]) obj;
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System.out.println("FAIL 23");
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}
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catch (ClassCastException x)
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{
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System.out.println("ok 23");
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}
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Object obj1 = new int[25];
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if (obj1 instanceof short[])
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{
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System.out.println("FAIL 24");
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}
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else
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{
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System.out.println("ok 24");
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}
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if (obj1 instanceof int[])
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{
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System.out.println("ok 25");
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}
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else
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{
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System.out.println("FAIL 25");
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}
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/* null assignment */
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CA obj_ca2 = null;
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if (obj_ca2 instanceof CA)
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{
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System.out.println("FAIL 26");
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}
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else
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{
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System.out.println("ok 26");
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}
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}
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}
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