随笔分类 -  IT技术--C#

摘要：Variance will only be supported in asafeway - in fact, using the abilities that the CLR already has. So the examples I give in the book of trying to use aList<Banana>as aList<Fruit>(or whatever it was) still won't work - but a few other scenarios will.Firstly, it will only be support 阅读全文

摘要：哈希表While not all problems can be solved with hash tables, a shocking number of interview problems can be Before your interview, make sure to practice both using and implementinghash tables尽管哈希表不能解决所有的问题，但是面试中的大部分问题能用它解决。在面试之前一定要好好准备下哈希表的使用和实现。1 public HashMap buildMap(Student[] students) {2 HashMap 阅读全文