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28 Commits

Author SHA1 Message Date
yasinshaw
24d5923f5e vault backup: 2026-03-08 20:59:34 2026-03-08 20:59:34 +08:00
yasinshaw
68f4771f25 vault backup: 2026-03-08 20:54:34 2026-03-08 20:54:34 +08:00
yasinshaw
b8d34c15e8 vault backup: 2026-03-08 20:44:34 2026-03-08 20:44:34 +08:00
yasinshaw
af12476b9d vault backup: 2026-03-08 20:39:33 2026-03-08 20:39:33 +08:00
yasinshaw
f956786a44 vault backup: 2026-03-08 11:38:01 2026-03-08 11:38:01 +08:00
yasinshaw
16ae667e2b vault backup: 2026-03-08 11:33:00 2026-03-08 11:33:00 +08:00
yasinshaw
ec78ea8752 vault backup: 2026-03-08 11:27:59 2026-03-08 11:27:59 +08:00
yasinshaw
fabdaaee1f docs: 优化Java NIO文档图解,使用Excalidraw可视化 
- 将ASCII文字图替换为专业的Excalidraw图表
- 新增4个可视化图表:三大核心组件架构、Selector多路复用模型、Buffer核心属性、零拷贝原理对比
- 图表使用配色方案区分不同组件(蓝色-Channel, 绿色-Buffer, 橙色-Selector)
- 在Obsidian中可通过![[...]]语法直接嵌入查看
 2026-03-08 11:25:54 +08:00
yasinshaw
932dc8844d vault backup: 2026-03-08 11:22:59 2026-03-08 11:22:59 +08:00
yasinshaw
34a440b064 vault backup: 2026-03-08 11:12:59 2026-03-08 11:12:59 +08:00
yasinshaw
04732a0119 docs: add Obsidian skills usage guide 
Added comprehensive guide for Obsidian visualization skills:

**Installed Obsidian Skills:**
1. obsidian-bases - Database view management
2. obsidian-cli - Command-line operations
3. obsidian-markdown - Flavored markdown creation

**Installed Obsidian Plugins:**
Community Plugins:
- dataview - Query and visualize data
- kanban - Task board view
- calendar - Daily notes calendar
- heatmap - Activity heatmap (GitHub-style)
- obsidian-tasks-plugin - Advanced task management
- obsidian-chart - Create charts and graphs
- obsidian-advanced-slides - Presentation slides
- obsidian-git - Git version control

Core Plugins:
- canvas - Whiteboard canvas
- bases - Database views
- graph - Relationship graph
- graph-analysis - Graph analysis
- webviewer - Web content viewer

**Guide Contents:**
- Skill usage examples
- Visualization workflows
- Best practices
- Keyboard shortcuts
- Troubleshooting tips
- Integration with Claude Code

**Use Cases:**
1. Knowledge graph building with Graph + Canvas
2. Learning progress tracking with Kanban + Tasks
3. Interview preparation planning with Bases
4. Statistics visualization with Charts
5. Daily learning flow with Calendar + Heatmap

All configurations saved in .obsidian/ for automatic sync.

Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>
 2026-03-06 10:55:55 +08:00
yasinshaw
0fbb50959e feat: add Obsidian visualization plugins and guide 
Added comprehensive visualization plugins and setup guide:

**Installed Community Plugins:**
1. **Dataview** - Query and visualize data from Markdown files
   - Create tables, lists, task views
   - Filter and sort by metadata
2. **Kanban** - Task board with drag-and-drop
   - Track learning progress
   - Manage interview prep tasks
3. **Calendar** - Daily notes with calendar view
   - Track study consistency
   - Auto-generate daily journals
4. **Heatmap** - Activity heatmap (GitHub-style)
   - Visualize study frequency
   - Track learning streaks
5. **Obsidian Tasks** - Advanced task management
   - Query tasks by due date, tags, priority
   - Track overdue and upcoming tasks
6. **Obsidian Chart** - Create charts and graphs
   - Pie charts, bar charts, line charts
   - Visualize learning statistics
7. **Advanced Slides** - Create presentations
   - Build interview prep slides
   - Support for Marp.js

**Enhanced Core Plugins:**
- Enabled Graph Analysis for better relationship visualization
- Enabled Webviewer for embedded content

**Created Documentation:**
- Comprehensive installation and usage guide
- Plugin configuration examples
- Best practices for interview preparation
- Keyboard shortcuts
- Troubleshooting tips

**Use Cases:**
- Build knowledge graph with Graph View + Canvas
- Track progress with Calendar + Heatmap + Tasks
- Review problems with Dataview + Kanban
- Create presentations with Advanced Slides

All configurations saved in .obsidian/ directory for automatic sync.

Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>
 2026-03-06 10:50:03 +08:00
yasinshaw
7aa971f511 feat: add Netty and Java NIO interview questions 
Added 3 comprehensive interview documents covering Netty and Java NIO:

**1. Netty Core Principles (Netty核心原理.md)**
- Core components: Channel, EventLoop, ChannelPipeline, ByteBuf
- Reactor threading model (single/multi-threaded, master-slave)
- ByteBuf vs Java NIO ByteBuffer
- Zero-copy implementation (4 approaches)
- ChannelPipeline and ChannelHandler
- TCP sticky/unpacking problem solutions
- Heartbeat mechanism

**2. Java NIO Core Principles (Java NIO核心原理.md)**
- NIO vs BIO comparison
- Three core components: Channel, Buffer, Selector
- Selector multiplexing mechanism
- Channel vs Stream differences
- Buffer core attributes and usage
- Non-blocking I/O implementation
- Zero-copy with transferTo and MappedByteBuffer

**3. Netty Practice Scenarios (Netty实战场景.md)**
- High-performance RPC framework design
- WebSocket server implementation
- Million-connection IM system architecture
- Memory leak detection and resolution
- Graceful shutdown implementation
- Heartbeat and reconnection mechanisms

Each document includes:
- Detailed problem descriptions
- Complete code examples (Java)
- Architecture diagrams
- Best practices
- Performance optimization tips
- P7-level bonus points

Total: 3 documents, covering:
- Theoretical foundations
- Practical implementations
- Production scenarios
- Performance tuning
- Common pitfalls

Suitable for backend P7 interview preparation.

Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>
 2026-03-06 10:20:11 +08:00
yasinshaw
b773a4fa83 vault backup: 2026-03-06 10:18:18 2026-03-06 10:18:18 +08:00
yasinshaw
f138f9649d feat: add LeetCode Hot 100 Medium problems collection 
Added 22 high-frequency LeetCode Hot 100 Medium problems with detailed solutions:

**Core Problems:**
- 两数相加 (LeetCode 2) - Linked list manipulation
- 无重复字符的最长子串 (LeetCode 3) - Sliding window
- 三数之和 (LeetCode 15) - Sorting + two pointers

**Array & String:**
- 盛最多水的容器 (LeetCode 11) - Two pointers
- 最长回文子串 (LeetCode 5) - DP / expand around center
- 除自身以外数组的乘积 (LeetCode 238) - Prefix/suffix product
- 最长连续序列 (LeetCode 128) - HashSet

**Backtracking:**
- 电话号码的字母组合 (LeetCode 17) - Backtracking
- 括号生成 (LeetCode 22) - DFS
- 子集 (LeetCode 78) - Backtracking

**Linked List:**
- 删除链表的倒数第N个结点 (LeetCode 19) - Fast/slow pointers

**Binary Tree:**
- 二叉树的中序遍历 (LeetCode 94) - Recursive/iterative
- 二叉树的最大深度 (LeetCode 104) - DFS/BFS
- 翻转二叉树 (LeetCode 226) - Recursive
- 对称二叉树 (LeetCode 101) - Recursive
- 路径总和 (LeetCode 112) - DFS
- 从前序与中序遍历序列构造二叉树 (LeetCode 105) - Recursive

**Dynamic Programming:**
- 柱状图中最大的矩形 (LeetCode 84) - Monotonic stack
- 最大正方形 (LeetCode 221) - DP
- 完全平方数 (LeetCode 279) - DP

**Stack:**
- 最小栈 (LeetCode 155) - Stack design

**DFS/BFS:**
- 单词搜索 (LeetCode 79) - DFS backtracking

Each problem includes:
- Detailed problem description with examples
- Multiple solution approaches
- Go and Java implementations
- Time & space complexity analysis
- Advanced follow-up questions
- P7-level bonus points (deep understanding, real-world applications)

Total: 22 problems, 2500+ lines of content
Suitable for P7 backend interview preparation

Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>
 2026-03-05 12:26:28 +08:00
yasinshaw
dcd3e136ec vault backup: 2026-03-05 12:23:56 2026-03-05 12:23:56 +08:00
yasinshaw
bc0ed186c8 refactor: reorganize interview files and fix errors 
Changes:
- Fixed CAP theory typo: "CP、AP、AP" → "CP、AP、CA"
- Reorganized file classifications for better structure:
  * Moved 4 database-related files from 01-分布式系统 to 02-数据库
  * Moved ConcurrentHashMap from 03-缓存 to 05-并发编程
  * Renamed 消息队列（RocketMQ_Kafka）.md → 消息队列_RocketMQ_Kafka.md
- Updated project overview with new structure (73 files, 15 categories)
- Database category now has 6 files (more cohesive)
- Concurrency category now has 5 files (better organized)

File movements:
- 事务隔离级别.md: 01-分布式系统 → 02-数据库
- 数据库锁机制.md: 01-分布式系统 → 02-数据库
- 分库分表.md: 01-分布式系统 → 02-数据库
- MySQL主从延迟.md: 01-分布式系统 → 02-数据库
- ConcurrentHashMap原理.md: 03-缓存 → 05-并发编程

Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>
 2026-03-04 01:43:26 +08:00
yasinshaw
180c558835 vault backup: 2026-03-03 20:16:26 2026-03-03 20:16:26 +08:00
yasinshaw
bde3eb8b95 vault backup: 2026-03-03 00:37:31 2026-03-03 00:37:31 +08:00
yasinshaw
2fc0fbccf3 vault backup: 2026-03-03 00:32:30 2026-03-03 00:32:30 +08:00
yasinshaw
99a5bda044 vault backup: 2026-03-03 00:27:30 2026-03-03 00:27:30 +08:00
yasinshaw
0bcdbdc2b7 vault backup: 2026-03-03 00:22:30 2026-03-03 00:22:30 +08:00
yasinshaw
4fb7260c68 vault backup: 2026-03-03 00:17:29 2026-03-03 00:17:29 +08:00
yasinshaw
10eb044bc5 vault backup: 2026-03-03 00:12:29 2026-03-03 00:12:29 +08:00
yasinshaw
ee80422372 vault backup: 2026-03-03 00:07:29 2026-03-03 00:07:29 +08:00
yasinshaw
99fee3dadd vault backup: 2026-03-02 18:46:34 2026-03-02 18:46:34 +08:00
yasinshaw
a95c605bbf refactor: 重组项目文件结构 
- 将项目概述文件移至根目录
- 将算法学习指南移至 questions 目录
- 将面试准备进度移至根目录
- 删除空的 questions 文件
- 更新 Obsidian 主题配置
 2026-03-02 18:14:26 +08:00
yasinshaw
7f3ab362b3 feat: rename Golang files to Chinese and supplement root files 
Changes:
- Renamed all 10 Golang files from English to Chinese names
- Created 00-项目概述/项目概述.md with comprehensive project overview
- Created 08-算法与数据结构/算法与数据结构学习指南.md with detailed learning guide
- Created 12-面试技巧/面试准备进度.md with progress tracking
- Added .obsidian configuration for better markdown editing
- Updated Claude.MD with Chinese filename rule

Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>
 2026-03-01 00:33:32 +08:00