double 保留两位小数
- Java
- 2018-01-31
- 136热度
- 0评论
用 Math.round。测试代码如下:
class round{
public static void main(String args[]){
double a = 123.13698;
double roundOff = Math.round(a*100)/100.0;
System.out.println(roundOff); // 123.14
}
}
参考:https://stackoverflow.com/questions/11701399/round-up-to-2-decimal-places-in-java