Multiple Choice Question

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Submitted by c-admin on Wed, 05/29/2019 - 00:19
QID: 
188
Type: 
Multiple Choice Question
Category: 
Java Programmer I
Tags: 
Abstraction
Question: 

Given:

interface Worker {   
void  performWork(); 
} class FastWorker  implements Worker {  
 public void  performWork(){ } 
} 

You are creating a class that follows "program to an interface" principle. Which of the following line of code will you most likely be using?

Select 1 option 

A. public FastWorker getWorker(){ return new Worker(); } 
B. public FastWorker getWorker(){ return new FastWorker(); } 
C. public Worker getWorker(){ return new FastWorker(); } 
D. public Worker getWorker(){ return new Worker(); } 

Q&A Set: 
Set 23