Rethink system design in a much fun way, as a former urban planner/landscape planner.

Binary Search 双指针 同向 反向 快慢 quick sort 单调栈队列 slide window

Small project to learn this design pattern

JVM note 2

let your code more elegant pass by value public TreeNode search(TreeNode root, int target) { TreeNode cur = root; while (cur !

Bugs and Errors Artifact xx exploded: Error during artifact deployment. See server log for details

最近看到成员变量用 final 修饰，而一直用 final 修饰常数， 有点好奇，就看了下原因。 public class Game { @JsonProperty("id") private final String id; @JsonProperty("name") private final String name; @JsonProperty("box_art_url") private final String boxArtUrl; } 这样的写法是没办法用 construcution，

how to calculate the storage and bandwidth? 一文搞懂系统面试中的性能估算 how much storage, machines, what scale is expected from the system?

quick review of Linux

JVM note