Java OCA OCP Practice Question 262

Question

Given the following: 

int[] ages = { 9, 41, 49 }; 
int sum = 0;

Which of the following are legal ways to add the elements of the array? 

A. for (int i=0; i<ages.length; i++) 
        sum += ages[i]; /*from   www  .java 2 s  .  c  o  m*/

B. for (int i=0; i<=ages.length; i++) 
        sum += ages[i]; 

C. for (int i:ages) 
        sum += i; 

D. sum += ages[int i:ages]; 



    A, C.

    Note

    A is the standard pre-5.0 way to add the elements.

    B throws an exception because it loops one time too many.

    C uses the enhanced for loop notation. D uses an illegal made-up notation.




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