Java OCA OCP Practice Question 1388

Question

Which statements about the output of the following programs are true? 

public class Main{ 
   public static void main (String args [] ){ 
      int i = 0 ; 
      boolean bool1 = true; 
      boolean bool2 = false; 
      boolean bool  = false; 
      bool =  (bool2 &  method1 ("1"));  //1 
      bool =  (bool2 && method1 ("2"));  //2 
      bool =  (bool1  |  method1 ("3"));  //3 
      bool =  (bool1  || method1 ("4"));  //4 
    } //from  w w w  .j  av a 2s.c o m
   public static boolean method1 (String str){ 
      System .out.println (str); 
      return true; 
    } 
}

Select 2 options

  • A. 1 will be the part of the output.
  • B. 2 will be the part of the output.
  • C. 3 will be the part of the output.
  • D. 4 will be the part of the output.
  • E. None of the above 


Correct Options are  : A C

Note

& and | do not short circuit the expression.

The value of all the expressions (1 through 4) can be determined by looking at the first part.

&& and || do not evaluate the rest of the expression if the result of the whole expression can be known by evaluating the left operand, so method1 () is not called for 2 and 4.




PreviousNext

Related