What happens to the fractional part of the result in integer division?

• A. It is rounded up
• B. It is rounded down
• C. It is truncated
• D. It is kept as is

Answer: (C)

In integer division, the result is obtained by dividing two integers, and the fractional part of the result is discarded entirely. This process is known as truncation. For example, when dividing 5 by 2 in integer division, the result is 2 because the fractional part (0.5) is not included in the final outcome.

Truncation means that any decimal or fractional component resulting from the division is simply removed, and only the whole number part of the quotient is retained. This behavior is consistent across all programming languages that implement integer division in this manner, including Java.

This concept differs from rounding, where you would adjust the number based on the decimal value (rounding up or down), and also differs from keeping the fractional part, which would occur in floating-point division. Therefore, recognizing that integer division results in truncation is crucial for understanding how numerical operations work in Java.