Question

Consider the following Java program :

public class Compute {

public static void main (string args [ ])
{
int result, x ;
x = 1 ;
result = 0;
while (x < = 10) {
if (x%2 = = 0)
result + = x ;
+ + x ;
}
System.out.println(result) ;
}
}
Which of the following will be the output of the above program?
(a) 55
(b) 30
(c) 25
(d) 35
(e) 45.

Answer 1

The Java program calculates the sum of even numbers between 1 and 10 inclusive. The sum is 30, making option (b) the correct output of the program.

Step-by-step explanation:

The supplied Java program is calculating the sum of even numbers between 1 and 10, inclusive. The program initializes x to 1 and result to 0. It then enters a while loop that continues as long as x is less than or equal to 10. Inside the loop, there's a conditional statement that checks if x is even, using the modulus operator (x % 2). If x is even, it is added to result. After the condition, x is incremented by 1. Finally, when the loop exits, the program prints the value of result.

Following the loop from x = 1 to x = 10, the even numbers are 2, 4, 6, 8, and 10. The sum of these numbers is 2 + 4 + 6 + 8 + 10 = 30.

Therefore, the correct output of the program is option (b) 30.