class Demo {
public static void main(String[] args) {
System.out.println("Hello World!");
ClassA p0 = new ClassA();
ClassB p1 = new ClassB();
ClassC p2 = new ClassC();
ClassA p3 = new ClassB();
ClassA p4 = new ClassC();
p0 = p1;
p1 = p2;
p1 = (ClassB)p3;
p2 = (ClassC)p4;
}
}
class ClassA{}
class ClassB extends ClassA{}
class ClassC extends ClassA{} |
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