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Is there a difference between the modulo and remainder operators in Java?

Barbara Streisand
Barbara StreisandOriginal
2024-10-29 20:19:29450browse

Is there a difference between the modulo and remainder operators in Java?

Equivalents of Modulo Operator in Java

In Java, the modulo operator is typically written as %, which represents the remainder obtained after dividing the first integer by the second. However, in some cases, it may be more appropriate to use the remainder operator % instead.

Consider the following example in pseudocode:

if ((a mod 2) == 0)
{
    isEven = true;
}
else
{
    isEven = false;
}

In Java, this code would be translated as:

if ((a % 2) == 0)
{
    isEven = true;
}
else
{
    isEven = false;
}

The modulo operator % in Java behaves slightly differently for negative integers, as it returns a negative value for negative dividends. To avoid this behavior, the remainder operator % is recommended for use with non-negative integers.

For a simplified alternative, the code can be written as a one-liner:

isEven = (a % 2) == 0;

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