round up to 2 decimal places in java? [duplicate]

Answer 1

String roundOffTo2DecPlaces(float val)
{
    return String.format("%.2f", val);
}

Answer 2

double roundOff = Math.round(a*100)/100;

should be

double roundOff = Math.round(a*100)/100D;

Adding 'D' to 100 makes it Double literal, thus result produced will have precision

Answer 3

I just modified your code. It works fine in my system. See if this helps

class round{
    public static void main(String args[]){

    double a = 123.13698;
    double roundOff = Math.round(a*100)/100.00;

    System.out.println(roundOff);
}
}

Answer 4

BigDecimal a = new BigDecimal("123.13698");
BigDecimal roundOff = a.setScale(2, BigDecimal.ROUND_HALF_EVEN);
System.out.println(roundOff);

Answer 5

     double d = 2.34568;
     DecimalFormat f = new DecimalFormat("##.00");
     System.out.println(f.format(d));

Answer 6

Try :

class round{
public static void main(String args[]){

double a = 123.13698;
double roundOff = Math.round(a*100)/100;
String.format("%.3f", roundOff); //%.3f defines decimal precision you want
System.out.println(roundOff);   }}