- 웹 통신의 흐름
- TCP 3,4-way handshaking
- TCP 흐름제어/혼합제어
- HTTPS, 대칭키&비대칭키, SSL handshake
- Blocking&Non-Blocking,Synchronous&Asynchronous,Blocking I/O&Non-Blocking I/O
- UDP
- Load Balancing
- JVM
- Java 컴파일 과정
- Call by value VS Call by reference
- String & StringBuffer & StringBuilder
- Garbage Collection
- 고유 락
- String
- Error & Exception
- Serialize
- Casting
- AutoBoxing & UnBoxing
- Thread
- Primitive & Reference Type
- Promotion & Casting
- Java Stream
- Composition