Java OCA OCP Practice Question 484

Question

What is the output of the following application? 

package bob; 
public class MyClass { 
        public static void main(String[] unused) { 
           String bob = new String("bob"); 
           String notBob = bob; 
           System.out.print((bob==notBob)+" "+(bob.equals(notBob))); 
        } 
}
  • A. true true
  • B. true false
  • C. false true
  • D. false false 


A.

Note

The first assignment actually uses two String objects, the literal "bob" and the String created with the new keyword.

Only the second object is assigned to the variable bob.

The second variable, notBob, is assigned a reference to the value of the bob variable.

This means that not only does the equals() test pass, but they are actually the same object, so the == test is true as well.

Therefore, the correct answer is Option A.




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