Round a Number

Round a Number using format

public class Decimal {

    public static void main(String[] args) {
        double num = 1.34567;

        System.out.format("%.4f", num);
    }
}

Output

1.3457

In the above program, we’ve used the format() method to print the given floating-point number num to 4 decimal places.  The 4 decimal places are given by the format .4f.

This means, print only up to 4 places after the dot (decimal places), and f means to print the floating-point number.