Question

Give the output for the following:-
int a[4]={2,4,6,8};
for(i=0;i<=1;i++)
{
s=a[i]+a[3-i];
System.out.println(s);
}

Answer 1

Answer:

Explanation:

but

When i ran this program on machine i shocked to get the answer 12,32,50.

i am writing here what concept i used.

If we do some operation in printf statement on same element then we have to use stack.

so in first printf statement:-

structure of stack is

++i (top of stack) => 6

i++ => 6

and after the execution of this value of i is 7 and i++ + ++i is 6+6 = 12

in second printf statement

structure of stack is

i++ <- (top of stack) = > 7

i++ =>8

++i => 10

i++ (lower index of stack) => 10

and after the execution of this value of i is 11 and i++ + ++i + i++ + i++is 10 + 10 + 8 + 7 = 35

in third printf statement

structure of stack is

i++ <- (top of stack) = > 11

++i =>13

i++ => 13

++i (lower index of stack) => 15

and after the execution of this value of i is 15 and ++i + i++ + ++i + i++ is 15 + 13 + 13 + 11 = 52

but When i ran this program on machine i shocked to get the answer 12,32,50.

i dont know what concept they used ..most probably side effect..

let me know if some have answer of this question with proper explanation.

thanks in advance ..!!!