2019年3月12日
MAP按照value排序
摘要： import java.util.Collections;import java.util.Comparator;import java.util.LinkedHashMap;import java.util.LinkedList;import java.util.List;import java. 阅读全文
posted @ 2019-03-12 19:57 Pure_Java 阅读(2453) 评论(0) 推荐(0) 编辑
Map遍历四种方法
摘要： 转载：http://www.cnblogs.com/kristain/articles/2033566.html public static void main(String[] args) { Map<String, String> map = new HashMap<String, String 阅读全文
posted @ 2019-03-12 19:50 Pure_Java 阅读(198) 评论(0) 推荐(0) 编辑
2019年3月9日
Java native方法
摘要： 附有连接（https://www.cnblogs.com/jingmoxukong/p/4302891.html），其中很多是引用其他作者，主要是自己学习随笔，如果有问题，请与我联系，万分感谢！ 阅读全文
posted @ 2019-03-09 22:19 Pure_Java 阅读(150) 评论(0) 推荐(0) 编辑
2019年3月8日
[PAT] 1143 Lowest Common Ancestor （30 分）Java
摘要： The lowest common ancestor (LCA) of two nodes U and V in a tree is the deepest node that has both U and V as descendants. A binary search tree (BST) i 阅读全文
posted @ 2019-03-08 21:02 Pure_Java 阅读(204) 评论(0) 推荐(0) 编辑
[PAT] 1148 Werewolf - Simple Version （20 分）Java
摘要： Werewolf（狼人杀） is a game in which the players are partitioned into two parties: the werewolves and the human beings. Suppose that in a game, player #1 阅读全文
posted @ 2019-03-08 21:02 Pure_Java 阅读(360) 评论(0) 推荐(0) 编辑
[PAT] 1096 Consecutive Factors （20 分）Java
摘要： Among all the factors of a positive integer N, there may exist several consecutive numbers. For example, 630 can be factored as 3×\times×5×\times×6×\t 阅读全文
posted @ 2019-03-08 21:00 Pure_Java 阅读(281) 评论(0) 推荐(0) 编辑
[PAT] 1092 To Buy or Not to Buy （20 分）Java
摘要： Eva would like to make a string of beads with her favorite colors so she went to a small shop to buy some beads. There were many colorful strings of b 阅读全文
posted @ 2019-03-08 20:58 Pure_Java 阅读(142) 评论(0) 推荐(0) 编辑
[PAT] 1088 Rational Arithmetic （20 分）Java
摘要： For two rational numbers, your task is to implement the basic arithmetics, that is, to calculate their sum, difference, product and quotient. Input Sp 阅读全文
posted @ 2019-03-08 20:57 Pure_Java 阅读(239) 评论(0) 推荐(0) 编辑
[PAT] 1084 Broken Keyboard （20 分）Java
摘要： On a broken keyboard, some of the keys are worn out. So when you type some sentences, the characters corresponding to those keys will not appear on sc 阅读全文
posted @ 2019-03-08 20:54 Pure_Java 阅读(423) 评论(0) 推荐(0) 编辑
[PAT] 1081 Rational Sum （20 分）Java
摘要： Given N rational numbers in the form numerator/denominator, you are supposed to calculate their sum. Input Specification: Each input file contains one 阅读全文
posted @ 2019-03-08 20:42 Pure_Java 阅读(247) 评论(0) 推荐(0) 编辑