Java OCA OCP Practice Question 452

Question

Consider the following method... 

public static void ifTest (boolean flag){ 
   if  (flag)   //1 
   if  (flag)   //2 
   if  (flag)   //3 
   System.out.println ("False True"); 
   else        //4 
   System.out.println ("True False"); 
   else        //5 
   System.out.println ("True True"); 
   else        //6 
   System.out.println ("False False"); 
}

Which of the following statements are correct ?

Select 2 options

  • A. If run with an argument of 'false', it will print 'False False'
  • B. If run with an argument of 'false', it will print 'True True'
  • C. If run with an argument of 'true', it will print 'True False'
  • D. It will never print 'True True'
  • E. It will not compile. 


Correct Options are  : A D

Note

Look at it like this: 

if  (flag)      //1 
    { /*from   w  ww  . j a  v a  2 s  .  co m*/
       if  (flag)       // 2 
        { 
            if  (flag)        //3 
             { 
                  System.out.println ("False True"); 
             } 
            else            //4 
             { 
                  System.out.println ("True False"); 
             } 
        } 
       else           //5 
        { 
             System.out.println ("True True"); 
        } 
    } 
else           //6 
{ 
        System.out.println ("False False"); 
}

Note that if and else do not cascade.

They are like opening an closing brackets.

So, else at //4 is associated with if at //3 and else at //5 is associated with if at //2




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