- Describing Data Structures such as Array, List, Hash, Stack, Queue, ListNode, TreeNode and Graph
- Explaining Algorithm such as Sort, Dynamic Programing, Binary Search, Back Trace, Sliding Window and Bit operation
- Sharing some leetcode's questions in my way
- Giving the better solutions
- Commenting many classes such as Collections, Atomic, Lock, Lambda and JNI
- Testing them of benchmark
- Spring(SpringBoot,SpringCloud)
- Netty(TimeWheel)
- Redis(Distributed Lock)
- Kafka
- MySQL