Java Math round()

Syntax of Math.round()

The syntax of the round() method is:

Math.round(value)

Here, round() is a static method. Hence, we are accessing the method using the class name, Math.

round() Parameters

The round() method takes a single parameter.

• value - number which is to be rounded

Note: The data type of the value should be either float or double.

round() Return Value

• returns the int value if the argument is float
• returns the long value if the argument is double

The round() method:

• rounds upward if the value after the decimal is greater than or equal to 5

  1.5 => 2
  1.7 => 2

• rounds downward if the value after the decimal is smaller than 5

  1.3 => 1

Example 1: Java Math.round() with double

Example 2: Java Math.round() with float

Recommended Tutorials

• Math.floor()
• Math.ceil()