Java OCA OCP Practice Question 2004

Question

What will the program print when compiled and run?. 

public class Main {
  public static void main(String[] args) {
    Integer i = new Integer(-10);
    Integer j = new Integer(-10);
    Integer k = -10;/*from w ww.j  a  v a2  s  . c o m*/
    System.out.print(i==j);
    System.out.print(i.equals(j));
    System.out.print(i==k);
    System.out.print(i.equals(k));
  }
}

Select the one correct answer. 


(a)  falsetruefalsetrue
(b)  truetruetruetrue
(c)  falsetruetruetrue
(d)  truetruefalsetrue
(e)  None of the above.



(a)

Note

Using the new operator creates a new object.

Boxing also creates a new object if one is not already interned from before.




PreviousNext

Related