下面我推荐这种方式:
public static void main(String[] args) {
double test1=10.2234;
double test2=10.3356;
Double dtest1 = Double.valueOf(String.format("%.2f", test1 ));
Double dtest2 = Double.valueOf(String.format("%.2f", test2 ));
System.out.println(dtest1 );
System.out.println(dtest2 );
}
结果(四舍五入保留2位):