Demonstrate Run-Time Type Information. : Class Object « Class Definition « Java Tutorial

1. Java Tutorial
2. Class Definition
3. Class Object

class X {
  int a;

  float b;
}

class Y extends X {
  double c;
}

class MainClass {
  public static void main(String args[]) {
    X x = new X();
    Y y = new Y();
    Class<?> clObj;

    clObj = x.getClass(); 
    System.out.println("x is object of type: " + clObj.getName());

    clObj = y.getClass(); 
    System.out.println("y is object of type: " + clObj.getName());
    
    clObj = clObj.getSuperclass();
    System.out.println("y's superclass is " + clObj.getName());
  }
}