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class C {}
class D extends C implements I {}
interface I {}
interface J extends I {}
public class Class_1
{
static void printIsAssignableFrom(Class a, Class b, boolean c)
{
// The field 'c' can be viewed to see the expected value.
System.out.println(a.isAssignableFrom(b));
}
public static void main (String arg[])
{
System.out.println("Testing class `Class_1'...");
printIsAssignableFrom(C.class, Object.class, false);
printIsAssignableFrom(C.class, C.class, true);
printIsAssignableFrom(C.class, D.class, true);
printIsAssignableFrom(D.class, C.class, false);
printIsAssignableFrom(Object.class, int[].class, true);
printIsAssignableFrom(int[].class, int[].class, true);
printIsAssignableFrom(C[].class, D.class, false);
printIsAssignableFrom(C[].class, D[].class, true);
// Known compiler limitation prevents next case from compiling.
// printIsAssignableFrom(C[].class, C[][].class, false);
System.out.println("printIsAssignableFrom(C[].class, C[][].class, false);" +
" case uncompilable due to known compiler limitation.");
printIsAssignableFrom(Object.class, I.class, true);
printIsAssignableFrom(I.class, I.class, true);
printIsAssignableFrom(D.class, I.class, false);
printIsAssignableFrom(I.class, D.class, true);
printIsAssignableFrom(D.class, J.class, false);
printIsAssignableFrom(J.class, D.class, false);
printIsAssignableFrom(I.class, J.class, true);
printIsAssignableFrom(J.class, J.class, true);
printIsAssignableFrom(J.class, I.class, false);
// Returns true iff both Class objects are equal.
printIsAssignableFrom(long.class, long.class, true);
// Does not work for primitive types in general.
printIsAssignableFrom(long.class, int.class, false);
}
}
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