摘要： As the title described, you should only use two stacks to implement a queue's actions.The queue should support push(element), pop() and top() where po... 阅读全文

摘要： In data structure Hash, hash function is used to convert a string(or any other type) into an integer smaller than hash size and bigger or equal to zer... 阅读全文

摘要： StringBuffer的用法，append方法的参数可以使boolean, char, char[], CharSequence, double, float, int, long, String, StringBuffer Better way: http://www.cnblogs.com/E 阅读全文

摘要： The code base version is an integer and start from 1 to n. One day, someone commit a bad version in the code case, so it caused itself and the followi... 阅读全文