在BlackBerry格式十进制值 [英] Format decimal values on a BlackBerry

问题描述

我显示双给用户，但它被打印为1.00000000001

I am displaying a double to the user, but it is printed as 1.00000000001

不过，我小数点后只需要两个数字。

However, I need only two digits after the decimal point.

推荐答案

有一个类调用格式化，可以做的伎俩。这里有一个code片断：

There's a class called Formatter that can do the trick. Here's a code snippet:

double value = 1.24790000001;
Formatter formatter = new Formatter();
String formatted = formatter.formatNumber(value, 2);

和，这里给的JavaDoc链接：<一个href=\"http://www.blackberry.com/developers/docs/4.3.0api/javax/microedition/global/Formatter.html\">javax.microedition.global.Formatter

And, here's a link to the JavaDoc: javax.microedition.global.Formatter

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