BigDecimal bDec = new BigDecimal("3.1415926");
int scale = 3;
bDec = bDec.setScale(scale,BigDecimal.ROUND_HALF_EVEN);
System.out.println(bDec);详细信息参考BigDecimal
int scale = 3;
bDec = bDec.setScale(scale,BigDecimal.ROUND_HALF_EVEN);
System.out.println(bDec);详细信息参考BigDecimal
public static void main(String[] args){
BigDecimal bd = new BigDecimal(3.1415926);
System.out.println(bd);
System.out.println(bd.setScale(5,BigDecimal.ROUND_HALF_EVEN));
System.out.println(bd.setScale(3,BigDecimal.ROUND_HALF_UP));
System.out.println(bd.setScale(3,BigDecimal.ROUND_HALF_UP));
}
}呵呵,似乎Java也有错误,UP和UDOWN的结果是一样的。