UGC NET CSE | January 2017 | Part 3 | Question: 39

Question

Consider the following JAVA program:

public class First {
    public static int CBSE (int x) {
            if (x < 100)x = CBSE (x+10);  
            return (x-1);
           }
     public static void main(String[]args){
            System.out.print(First.CBSE(60));
     }
}

What does this program print?

• A. $59$        
• B. $95$       
• C. $69$      
• D. $99$

Comments

option B) 95 ?

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this is duplicate of https://gateoverflow.in/113833/ugcnet-dec2016-iii-39  

Answer 1

Answer : 95

Comments

can you please explain it theoretically..

i am unable to understand why every time it is substracting when return stmt is given after the completion of recursion...

can anybody please explain

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Because of the statement return(x-1); we have to subtract 1 and return

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thank you

Answer 2

Option 2

 

CBSE(60) ->

                 60<100 so, x=CBSE(70)

                       ...................................80

                                           ............................................90

                                                  ......................................................100    

                                                                                     100  is not < 100  SO CBSE(100) Returns 100-1=99

            cbse(90) returns 98

      cbse(80) returns 97

   cbse(70)returns 96

cbse(60) returns 95

 

therefore ans 95

Answer 3

Answer is 95

Answer 4

option B is coorect