Can someone help me create a rounding routine? I have some mathematical calculations being done in a program that the final result is a double. The only trouble is, is when I want to display it, there are too many digits appearing. I have searched the Sun web site and others without finding anything that will help.
AQWst
-2
Light Poster
Recommended Answers
Jump to PostYou should really dig into the API docs a bit. Depending on what you want to achieve you can use one of two classes at least to achieve what you want using only standard API functions.
All 3 Replies
jwenting
1,889
duckman
Team Colleague
You should really dig into the API docs a bit. Depending on what you want to achieve you can use one of two classes at least to achieve what you want using only standard API functions.
server_crash
64
Postaholic
Yep, you can use decimal format, or the Math.round(), but you'll be satisfied with the DecimalFormat class.
paradox814
1
Posting Whiz
import java.text.DecimalFormat;
public class DecimalTest
{
public static void main(String[] args)
{
DecimalFormat dfMoney = new DecimalFormat("$###.##");
DecimalFormat df2 = new DecimalFormat("###.##");
DecimalFormat df3 = new DecimalFormat("###.###");
DecimalFormat df4 = new DecimalFormat("###.####");
System.out.println(dfMoney.format(294.489003));
System.out.println(df2.format(294.489003));
System.out.println(df3.format(5935.393432));
System.out.println(df4.format(1323.23423));
}
}Here is the output:
$294.49
294.49
5935.393
1323.2342
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