Programming-Idioms

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2015-04-21, 22:45:25

2015-04-21, 22:58:18

Idiom #65 Format decimal number

From real value x in [0,1], create its percentage string representation s with one digit after decimal point. E.g. 0.15625 -> "15.6%"

From real value x in [0,1], create its percentage string representation s with one digit after decimal point. E.g. 0.15625 -> "15.6%"

import java.text.DecimalFormat;

String s = new DecimalFormat("0.0%").format(x);

This notation handles the multiplication by 100 for you.

http://docs.oracle.com/javase/7/docs/api/java/text/DecimalFormat.html

https://ideone.com/acD3dm

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