Multiple choice technology programming languages

What is the result that will be printed out ? void aMethod() { float f = (1 / 4) * 10; int i = Math.round(f); System.out.println(i); }

  1. 2

  2. 0

  3. 3

  4. 2.5

  5. 25
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In Java, integer division truncates toward zero. The expression (1 / 4) performs integer division, resulting in 0 (not 0.25). Then 0 * 10 = 0. Math.round(0.0f) returns 0. The final output is 0.

AI explanation

To determine the result that will be printed out, let's go through the code step by step:

  1. The expression (1 / 4) is evaluated. Since both 1 and 4 are integers, integer division is performed. In integer division, the result is the quotient without any remainder. So, 1 / 4 will evaluate to 0.

  2. The expression 0 * 10 is evaluated. Multiplying any number by 0 will always result in 0.

  3. The variable f is assigned the value of 0.

  4. The Math.round() function is called with f as the argument. The Math.round() function rounds the floating-point value to the nearest integer. In this case, since f is 0, it remains unchanged.

  5. The value of i is assigned the rounded value of f, which is still 0.

  6. Finally, the value of i is printed using System.out.println(i). So, the output will be 0.

Therefore, the correct answer is B) 0.

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