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Discussion :: Flow Control

  1. What will be the output of the program?

     boolean bool = true; 
 if(bool = false) /* Line 2 */
 {    
     System.out.println("a");  
 } 
 else if(bool) /* Line 6 */ 
{
     System.out.println("b");  
}  
else if(!bool) /* Line 10 */ 
{
   €‹System.out.println("c"); /* Line 12 */ 
}  
else  
{    
   System.out.println("d"); 
}

    2. A.

    a
    B.

    b
    C.

    c
    D.

    d

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    Answer : Option C

    Explanation :

    Look closely at line 2, is this an equality check (==) or an assignment (=). The condition at line 2 evaluates to false and also assigns false to bool. bool is now false so the condition at line 6 is not true. The condition at line 10 checks to see if bool is not true ( if !(bool == true) ), it isn't so line 12 is executed.

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