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Rounding In Java

2 replies on 1 page. Most recent reply: Sep 20, 2003 11:51 PM by FredrikN

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N. Vu

Posts: 1
Nickname: autonomic
Registered: Sep, 2003

Rounding In Java

Posted: Sep 20, 2003 5:50 PM

Hi,

I'm a bit of a Java newbie and I was wondering whether you can round numbers in Java.

Like, let's say I have this double 4.7688623421, is there a way I could round this to 2 decimal places so I can output it to the screen?

Thanks a lot.

Senthoorkumaran Punniamoorthy

Posts: 335
Nickname: senthoor
Registered: Mar, 2002

Re: Rounding In Java

Posted: Sep 20, 2003 6:41 PM

Did you google before posting your question?

http://www.dickinson.edu/~braught/courses/cs132s01/classes/code/Rounding.src.html

FredrikN

Posts: 22
Nickname: fredrikn
Registered: Jul, 2003

Re: Rounding In Java

Posted: Sep 20, 2003 11:51 PM

Or just use the NumberFormat
The foolowing code will display 4.77

import java.text.*;
public class Driver
{
 
	public static void main(String[] args)
	{
		float f = 4.7688623421f;
	
		System.out.println( new DecimalFormat("0.##").format(f)   );
	}
 
}

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