修剪双精度到2位小数 [英] Trim Double to 2 decimal places

问题描述

应该很容易。我最初会在javascript中执行此操作，但必须在设置到我的处理程序页面中的表单之前执行此操作。无论如何，我需要使这些值有2位小数。 Ex 219333.5888888需要219333.58。是否有修剪函数？

should be an easy one. I originally was gonna do this in javascript but have to do it prior to setting to the form in my handler page. Anyway I need to make these values have 2 decimal places. Ex 219333.5888888 needs to be 219333.58. Is there a trim function or something?

 form.setUnitRepairCost(Double.toString(jobPlanBean.getUnitTotalCost()));   //UNIT REPAIR COST
 form.setUnitMaterialCost(Double.toString(jobPlanBean.getUnitTotalMaterialCost())); //UNIT MATERIAL COST

推荐答案

这是一个简单的例子格式化十进制值

here is the simple example to format the decimal value

import java.text.*;

public class DecimalPlaces {

    public static void main(String[] args) {

        double d = 1.234567;
        DecimalFormat df = new DecimalFormat("#.##");
        System.out.print(df.format(d));
    }

}

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