IntelliJ IDEA INSTALLATION INSTRUCTIONS
IntelliJ IDEA INSTALLATION INSTRUCTIONS =============================================================================== 1. Unpack the IntelliJ IDEA distribution archive that you downloaded ...
IntelliJ IDEA INSTALLATION INSTRUCTIONS =============================================================================== 1. Unpack the IntelliJ IDEA distribution archive that you downloaded ...
Spring Framework Spring Core IoC, AOP Spring Data Access Transactions, Spring MyBatis Web Servlet Spring MVC Integration ...
Q: 什么是长连接呢? 客户端向服务器发起连接,服务器接受客户端的连接,双方建立连接。客户端与服务器完成一次读写之后,它们之间的连接并不会主动关闭,后续的读写操作会继续使用这个连接。 Q: 什么是短连接呢? 客户端向服务器发起连接,服务器接受客户端连接,在三次握手之后,双方建立连接。客户端与服务器完成一次读写,发送数据包并得到返回的结果之后,通过客户端和服务器的四次握手断开连接。短连接...
LeetCode https://leetcode.cn/problems/validate-stack-sequences/ class Solution { public boolean validateStackSequences(int[] pushed, int[] popped) { Deque<Integer> stack = ...
LeetCode https://leetcode.cn/problems/subtree-of-another-tree/ /** * Definition for a binary tree node. * public class TreeNode { * int val; * TreeNode left; * TreeNode right; * ...
LeetCode https://leetcode.cn/problems/spiral-matrix/ class Solution { public List<Integer> spiralOrder(int[][] matrix) { List<Integer> result = new ArrayList<&...
LeetCode https://leetcode.cn/problems/path-sum-ii/ /** * Definition for a binary tree node. * public class TreeNode { * int val; * TreeNode left; * TreeNode right; * TreeNode...
Preview at 由第一行开始显示文件内容 tac 从最后一行开始显示,可以看出 tac 是 cat 的倒着写! nl 显示的时候,顺道输出行号! more 一页一页的显示文件内容 less 与 more 类似,但是比 more 更好的是,他可以往前翻页! head 只看头几行 tail 只看尾巴几行 od 以二进制的方式读取文件内容! cat (...
LeetCode https://leetcode.cn/problems/merge-two-sorted-lists/ /** * Definition for singly-linked list. * public class ListNode { * int val; * ListNode next; * ListNode() {} * ...
LeetCode https://leetcode.cn/problems/remove-nth-node-from-end-of-list/ /** * Definition for singly-linked list. * public class ListNode { * int val; * ListNode next; * ListNode()...