Berkeley CS 61B Data Structures(in Java) Homework2 加分+讨论帖

Homework2

查错查了好久。。求加分

de了我半天的bug啊啊啊！！！ 最后发现是switch语句的default语句忘记写了。。。摔！！！！！
总结一下！ 1. 不是同一天是!(this.year==d.year && this.month==d.month && this.day==d.da。。。。。开始感叹号都写到了里面。。。。
2.新学到了 String [] date=s.split("/");
以及 String.valueOf(...) 数字转为字符串。https://www.1point3acres.com/bbs/forum.php?mod=attachment&aid=MjY1MTYxfDZlNGZkYTRjZjczZjU4ZWQ5MDUxN2VlNjljNjJlNzg2fDE3ODU0ODQ5MjU%3D&request=yes&_f=.png

为什么只能上传50KB  每次都要调半天呜呜呜呜T T

我以为能够分分钟搞定。。结果也折腾了一个多小时求加分！！！

有点难啊

报告
Testing constructors.
Date should be 1/1/1: 1/1/1
Date should be 2/4/2: 2/4/2
Date should be 2/28/2000: 2/28/2000
Date should be 2/29/1904: 2/29/1904
Date should be 12/31/1975: 12/31/1975
Date should be 1/1/1976: 1/1/1976
Date should be 1/2/1976: 1/2/1976

Testing before and after.
1/1/1976 after 12/31/1975 should be true: true
1/2/1976 after 1/1/1976 should be true: true
12/31/1975 after 12/31/1975 should be false: false
12/31/1975 after 1/1/1976 should be false: false
1/1/1976 after 1/2/1976 should be false: false
12/31/1975 before 1/1/1976 should be true: true
1/1/1976 before 1/2/1976 should be true: true
12/31/1975 before 12/31/1975 should be false: false
1/1/1976 before 12/31/1975 should be false: false
1/2/1976 before 1/1/1976 should be false: false

Testing difference.
12/31/1975 - 12/31/1975 should be 0: 0
1/1/1976 - 12/31/1975 should be 1: 1
1/2/1976 - 12/31/1975 should be 2: 2
1/2/1976 - 2/27/1977 should be -422: -422
8/31/2110 - 2/27/1977 should be 48762: 48762

Testing constructors.
Date should be 1/1/1: 1/1/1
Date should be 2/4/2: 2/4/2
Date should be 2/29/2000: 2/29/2000
Date should be 2/29/1904: 2/29/1904
Date should be 12/31/1975: 12/31/1975
Date should be 1/1/1976: 1/1/1976
Date should be 1/2/1976: 1/2/1976

Testing isLeapYear.
Year 2000 should be LeapYear: true
Year 1900 should be LeapYear: false
Year 4 should be LeapYear: true
Year 2001 should be LeapYear: false

Testing before and after.
1/1/1976 after 12/31/1975 should be true: true
1/2/1976 after 1/1/1976 should be true: true
12/31/1975 after 12/31/1975 should be false: false
12/31/1975 after 1/1/1976 should be false: false
1/1/1976 after 1/2/1976 should be false: false
12/31/1975 before 1/1/1976 should be true: true
1/1/1976 before 1/2/1976 should be true: true
12/31/1975 before 12/31/1975 should be false: false
1/1/1976 before 12/31/1975 should be false: false
1/2/1976 before 1/1/1976 should be false: false

Testing difference.
12/31/1975 - 12/31/1975 should be 0: 0
1/1/1976 - 12/31/1975 should be 1: 1
1/2/1976 - 12/31/1975 should be 2: 2
1/2/1976 - 2/27/1977 should be -422: -422
8/31/2110 - 2/27/1977 should be 48762: 48762

真是不容易。。。
小结一下：
1、闰年算法一开始弄错了2、isAfter那个一句话没想出来3、difference方法一开始写了好长出来结果还是错的，最后按照帖子里提示算了从元年到两个日期的总长再相减4、constructor那个后来用indexof()和substring()方法截取的，感觉笨笨的
再接再厉~~

norafang 发表于 2015-4-7 19:54
真是不容易。。。
小结一下：
1、闰年算法一开始弄错了2、isAfter那个一句话没想出来3、difference方法一 ...

同学我又来了。就是这个题你还记得吗？其中的daysInMonth()你是直接用switch语句一个一个写进去的吗？把每个月的天数都写？

这回的虽然不难，但是好复杂，写了好久，累虚了。。。。