java保留两位小数问题: 方式一: 四舍五入 double f = 111231.5585; BigDecimal b = new BigDecimal(f); double f1 = b.setScale(2, BigDecimal.ROUND_HALF_UP).doubleValue(); 保留两位小数 --------------------------------------------------------------- 方式二…
BigDecimal除法的精度问题 在使用BigDecimal的除法时,遇到一个鬼畜的问题,本以为的精度计算,结果使用返回0,当然最终发现还是自己的使用姿势不对导致的,因此记录一下,避免后面重蹈覆辙 I. 问题抛出 在使用BigDecimal做高精度的除法时,一不注意遇到了一个小问题,如下 @Test public void testBigDecimal() { BigDecimal origin = new BigDecimal(541253); BigDecimal now = new Bi…
Train Problem II Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 10372 Accepted Submission(s): 5543 Problem Description As we all know the Train Problem I, the boss of the Ignatius Train Sta…
uva 10494 - If We Were a Child Again If We Were a Child Again Input: standard inputOutput: standard output Time Limit: 7 seconds “Oooooooooooooooh! If I could do the easy mathematics like my school days!! I can guarantee, that I’d not make any mist…