Daehong TIL Blog

👨🏻‍💻 하루에 한 걸음씩 꾸준히 나아가는 개발자

Today I Learned : 오늘 내가 배운 것들을 정리합니다.

저는 기초를 중요시하며, 꾸준하고 성실하게 공부하는 것을 선호합니다.

이것은 추후 저의 큰 자산이 될 것이며, 개발을 공부하는 다른 사람들에게도 큰 도움이 될 것입니다.

TIL List

Very Important Study Content

• Mutex & Semaphore

• Concurrency issues And Lock

• DB index to improve performance

• Redis Cache & Update Strategy

• Very Important Transaction

• DB Lock

Big-Data

• ETL vs CDC

Java

• Java Basic JDK, JRE, JVM & JVM WarmUp

• Java Version

• OOP and SOLID

• Multithread Synchronization Issues Basic

• Assignment vs Equality vs Equals

• Primitive vs Wrapper

• Abstract Class vs Interface

• Equals & HashCode

• Call By Value vs Call By Reference

• 7 features of Java

• Classes, Objects and Instances

• Error in Floating Point

• Short Circuit vs Eager Operator

• Static ?

• Immutable Class vs Mutable Class

• Operators, TypeConversion, and MemoryOverflow

• String

• Libraries vs Frameworks

• Final Keyword

• Method Dispatch

• Inner Class

• Exception

• Collection Basic & Hash Basic

• Annotation

• Generic

• Garbage Collection

• Shallow Copy vs Deep Copy

• Daemon Thread

• IO & NIO ( Blocking vs Non-Blocking )

• JSP & Servlet

• JDBC & Connection Pool

• JVM Stack and Stack Frame

• Blocking IO, Non Blocking IO, Sync, Async

• Java Etc Study

Spring

• Why use springs?

• IoC & DI

• IoC Container & DI Container

• Spring Bean

• Autowired

• Quilifier vs Primary

• POJO

• Filter vs Interceptor

• DTO vs VO vs Entity

• Spring Etc Study

Web

• Web internal operation

• GET, POST, PUT, PATCH, DELETE

• URL vs URI

• API vs RestAPI

• Cookie vs Session

Git & Github

• Git & Github Basic

• Git Rollback

• Branch & Interaction

CS

• Why computers use binary numbers

• Interrupt

• Ram vs Disk and Cache

• System Bus

• File writing process in Java (OS, interrupt, I/O perspective)

• Process vs Thread Basic

• Process vs Thread Deep

• TCP vs UDP

• Early Return Pattern

• Singleton Pattern

• Layered Architecture

• UML Basic

• Design Pattern Basic

Algorithm ( Daily Problem Solving )

• Mischief

• TwoDimensional Array Sorting

• Binary Search

• MusicVideo(Binary Search)

• Choosing Stable(Binary Search)

• DFS(Recursive Function)

• Factorial

• Fibonacci ( Memoization )

• BinaryTree ( DFS )

• BinaryTree ( BFS )

• Find Subset ( DFS )

• Find Calf ( BFS )

• Shortest Distance ( DFS, BFS )

• Route Navigation ( Graph, DFS )

• Route Navigation2 ( Graph List, DFS )

• Graph Shortest Distance ( Graph / BFS )

• Find Subsets Same Sum ( DFS )

• Baduki Riding ( DFS )

• Maximum Score ( DFS )

• Finding Duplicate Permutations ( DFS )

• Coin Exchange ( DFS )

• Number of Combinations Memoization ( DFS )

• Finding Permutations ( DFS )

• Guess Sequence ( DFS )

• Finding Combinations ( DFS )

• Maze Navigation ( DFS )

• Maze Navigation ( BFS )

• Tomato ( BFS )

• Island ( DFS )

• Island ( BFS )

• Pizza Delivery Distance ( DFS )

• Wrestler ( Greedy )

• MeetingRoom Assignment ( Greedy )

• Wedding Ceremony ( Greedy )

• Maximum Earnings Schedule ( Greedy )

• Wonderland ( Union&Find )

• Wonderland ( Prim Algorithm )

• Climbing Stairs

• Cross Stone Bridge

• Maximum Partially Increasing Sequence

• Build Tallest Tower

• Maximum Score(Knapsack Algorithm)

• Two Pointers Algorithm

• Sliding Window

• Sort Algorithm

• Sum Of Consecutive Natural Numbers

• Sieve of Eratosthenes

• Dijkstra Algorithm

• Union & Find

• Knapsack Algorithm

• String CodingTest Tip

• Array CodingTest Tip

• Hash CodingTest Tip

• Stack and Queue CodingTest Tip

• ETC CodingTest Tip

Development Tip

• Lock

• Iamge Upload

• When modifying a session in a hurry

• How to prepare for high volume traffic

• Transactional(readOnly = true)

• Why you should avoid NoArgsConstructor and AllArgsConstructor

ETC

• High Availability (HA)

• Directed Acyclic Graph (DAG)

Development BOOK

• Computer structure and operating system for self-study

Daehong TIL Blog
Git : https://github.com/JeonDaehong
Curriculum Vitae : https://daehong770.oopy.io/
Another Blog (Develop Blog) : https://development-my-link.tistory.com/