rounding a double

Hi all,as you can tell from my question I am new to JAVA. So far I love it.I need to round a double to 2 places but the Math.round method rounds to an integer. Does someone have a good way to round to 2 places? ThanksMessage was edited by: LTLhawk

[289 byte] By [LTLhawka] at [2007-11-27 2:02:01]

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# 1

Do you want a String where the double is formatted to two decimal places,or do you want a double variable that holds a rounded value?

DrLaszloJamfa at 2007-7-12 1:42:52 >

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# 2

well, I would love to see both, but for this project I just need a string that will be formatted to hold the double to 2 placesMessage was edited by: LTLhawk

LTLhawka at 2007-7-12 1:42:52 >

# 3

> well, I would love to see both, but for this project. I just need a string > that will be formatted to hold the double to 2 placesHave a look at the DecimalFormat class.kind regards,Jos

JosAHa at 2007-7-12 1:42:52 >

# 4

You can use NumberFormat:

import java.text.*;

public class RoundedExample {

public static void main(String[] args) {

double x = 1.235;

NumberFormat fmt = NumberFormat.getNumberInstance();

fmt.setMinimumFractionDigits(2);

fmt.setMaximumFractionDigits(2);

String s = fmt.format(x);

System.out.println(s);

}

There is also double formatting capabilities built into java.util.Formatter

and the format method of java.io.PrintWriter/PrintStream.

DrLaszloJamfa at 2007-7-12 1:42:52 >

# 5

I researched that NumberFormat and it worked great..I will look into the othr examples to... thanks guys. I really appreciate your help

LTLhawka at 2007-7-12 1:42:52 >

# 6

> You can use NumberFormat:I usually prefer a simple DecimalFormat here:DecimalFormat df= new DecimalFormat("#.00");...System.out.println(df.format(1234.5678));kind regards,Jos

JosAHa at 2007-7-12 1:42:52 >

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