Write a Java Program to Round a Number to n Decimal Places

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Write a Java Program to Round a Number to n Decimal Places

PROGRAM: Java Program to Round a Number to n Decimal Places

/*Java Program to Round a Number to n Decimal Places*/

1: Round a Number using format

public class Decimal {

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

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

2: Round a Number using DecimalFormat

import java.math.RoundingMode;
import java.text.DecimalFormat;

public class Decimal {

    public static void main(String[] args) {
        double num = 1.34567;
        DecimalFormat df = new DecimalFormat("#.###");
        df.setRoundingMode(RoundingMode.CEILING);

        System.out.println(df.format(num));
    }
}