.round()

The Math.round() method returns an int or long value that is closest to the number provided.

Math.round(n)

The .round() method takes one parameter n, the value that is to be rounded.

The following example demonstrates using .round() to round the value 1.8 to the nearest integer:

public class Test {
  public static void main(String args[]) {
    int n = Math.round(1.8);
    int m = Math.round(5.2);
    System.out.println(n);
    System.out.println(m);
  }
}

This will produce the following output:

2
5