Java SE 8 Programmer 1Z0–808 Practice Full Test 1

Question : 24 of 84

Marks: +1, -0

Given:
Base.java:

class Base {
   public void test () {
     System.out.println("Base ");
   }
 }

DerivedA.java:

class DerivedA extends Base { 
   public void test () {
     System.out.println("DerivedA ");
   }
 }

DerivedB.java:

class DerivedB extends DerivedA {
   public void test () {
     System.out.println ("DerivedB ");
   }
   public static void main (String[] args) {
     Base bl = new DerivedB ();
     Base b2 = new DerivedA();
     Base b3 = new DerivedB ();
     bl = (Base) b3;
     Base b4 = (DerivedA) b3;
     bl.test();
     b4.test();
   }
 }

What is the result?

Base
DerivedA
Base
DerivedB
DerivedB
DerivedB
DerivedB
DerivedA
A ClassCastException is thrown at runtime.

Validate

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