java round double 2 decimal code example

Example 1: double round java integer

int a = (int) Math.round(doubleVar);

Example 2: java double 2 decimal

String result = String.format("%.2f", value);

Example 3: how to limit double decimal places java

package com.mkyong;

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

public class DecimalExample {

    private static DecimalFormat df2 = new DecimalFormat("#.##");

    public static void main(String[] args) {

        double input = 3.14159265359;
        System.out.println("double : " + input);
        System.out.println("double : " + df2.format(input));    //3.14

        // DecimalFormat, default is RoundingMode.HALF_EVEN
        df2.setRoundingMode(RoundingMode.DOWN);
        System.out.println("\ndouble : " + df2.format(input));  //3.14

        df2.setRoundingMode(RoundingMode.UP);
        System.out.println("double : " + df2.format(input));    //3.15

    }

}
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Example 4: java round double to 2 decimal places

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

public class DecimalExample {
    private static DecimalFormat df = new DecimalFormat("0.00");
    public static void main(String[] args) {
        double input = 1205.6358;
      
        System.out.println("salary : " + input);
      
        // DecimalFormat, default is RoundingMode.HALF_EVEN
        System.out.println("salary : " + df.format(input));      //1205.64
        
        df.setRoundingMode(RoundingMode.DOWN);
        System.out.println("salary : " + df.format(input));      //1205.63

        df.setRoundingMode(RoundingMode.UP);
        System.out.println("salary : " + df.format(input));      //1205.64
    }
}