Java OCA OCP Practice Question 509

Question

Consider the following classes, declared in separate source files: 

 1. public class Base { 
 2.   public void method(int i) { 
 3.     System.out.print("Value is " + i+" "); 
 4.   } // w ww.java  2 s.  c  o m
 5. } 
 
 
 
 1. public class Sub extends Base { 
 2.   public void method(int j) { 
 3.     System.out.print("This value is " + j+" "); 
 4.   } 
 5.   public void method(String s) { 
 6.     System.out.print("I was passed " + s+" "); 
 7.   } 
 8.   public static void main(String args[]) { 
 9.     Base b1 = new Base(); 
10.     Base b2 = new Sub(); 
11.     b1.method(5); 
12.     b2.method(6); 
13.   } 
14. }

What output results when the main method of the class Sub is run?

  • A. Value is 5 Value is 6
  • B. This value is 5 This value is 6
  • C. Value is 5 This value is 6
  • D. This value is 5 Value is 6
  • E. I was passed 5 I was passed 6 


C.

Note

The first message is produced by the Base class when b1.method(5) is called and is therefore Value is 5.

variable b2 is declared in the Base class.




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