Expressions and Assignment Statements

AP Computer Science A· difficulty 2/5

public static double half(int n) {
    return n / 2;
}

What is wrong with this method?

A
$Division by 2 is undefined for negatives$
B
$Integer division truncates; cast at least one operand to double$
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C
$The return type should be int$
D
$Nothing is wrong$

Explanation

n / 2 performs integer division because both operands are int, so half(3) returns 1.0. Use (double) n / 2 or n / 2.0 to retain the fractional part.

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