将字符串转换为Double-Java

看一看

java.text.NumberFormat

import java.text.*;import java.util.*;public class Test{    // Just for the sake of a simple test program!    public static void main(String[] args) throws Exception    {        NumberFormat format = NumberFormat.getInstance(Locale.US);        Number number = format.parse("835,111.2");        System.out.println(number); // or use number.doublevalue()    }}

根据您使用的数量类型，您可能想解析为一个

BigDecimal

BigDecimal value = new BigDecimal(str.replace(",", ""));

或

DecimalFormat

setParseBigDecimal(true)

DecimalFormat format = (DecimalFormat) NumberFormat.getInstance(Locale.US);format.setParseBigDecimal(true);BigDecimal number = (BigDecimal) format.parse("835,111.2");