1.只要输出结果
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double x1 = 0.026;
System.out.println(String.format("%.2f", x1));
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2.数据转换
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//方案一:get_double = (double)(Math.round(result_value*100)/100.0)
//方案二:DecimalFormat df = new DecimalFormat("#.##");
get_double = Double.ParseDouble(df.format(result_value));//方案三:get_double = Double.ParseDouble(String.format("%.2f",result_value));
//方案四:BigDecimal bd = new BigDecimalresult_value();
BigDecimal bd2 = bd.setScale(2,BigDecimal .ROUND_HALF_UP);
get_double = Double.ParseDouble(bd2.ToString()); |
3.只保留两位小数(不含四舍五入)
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double d = 13.4324;
d=((int)(d*100))/100;
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本文转自 glblong 51CTO博客，原文链接：http://blog.51cto.com/glblong/1312340，如需转载请自行联系原作者