http shortest path web server BFS socket array tcp transaction graph String LeetCode Dynamic Programming LinkedList thread dfs gradle constant pool jpa I/O Stream java OS local variable array DI(Dependency Injection) vtable instance method two pointer PriorityQueue Java Reflection Instance Variable Spring Boot Dependency Injection proxy pattern Greedy Constructor HashMap I/O abstract unit test WAS JDBC Process Stack Database spring was(web application server) tcp 4 way handshake character stream byte stream entitymanger ioc(inversion of control) runtime constant pool symbolic reference java bytecode keep-alive Palindromic db 접근 기술 dynamic proxy HTTP API EntityManager class method sliding window Web Application Server MaxHeap MinHeap persistence context hikariCP System call http/2.0 http/1.1 Multi Threading Template method pattern JDBC TEMPLATE access modifier Thymeleaf Factory Pattern type casting static method template engine JAVA API Polymorphism substring recursive Connection Pool multi tasking heap bytecode Repository Interface ASCII Tomcat jvm TDD MVC API Exception CPU Method Linux Stream list File this service Two poiner find mind node hashtabl persistent connection persistence connection http response message pasring http request message i/o-bound cpu-bound persistencecontext proxy object callback method callback interface transactioin jdbc connection transaction synchronization compenentscan jvm interpreter jvm jit compiler i/o resource leak inode table vnode table dip(dependency inversion principle) jarlauncher classfile 상속 없이 하나의 예외로 묶기 checked exception를 unchecked exception으로 변환 method throws declaration exception rethrowing exception throwing dependency inversion local class instance class jdbc drivermanager reference variable string constant pool local variable area rumtime data area runtime data are class data class file class initialization block instance initialization block explicit initialization interface method static dispatch itable dynamic dispatch dynamic linking arithmetic 연산 bitwise 연산 java compiler object-oriented-programming procedure-oriented-programming java thread model os library cpu architecture 배열 접근 방식 배열 저장 방식 java disassemble java compile optimization branch table jump table 논리 회로 덧셈 연산 컴파일 연산 최적화 shift 연산 parity bit 실수 진법 변환 정수 진법 변환 java floating-point jvm operand stack jvm 스택 기반 연산 Spring IoC Container multi core chained exception build tool file table Context-Switching custom exception java integer single inheritance static variable recursive call Static Content Multi Processing vnode spring initializr Integration Test AutoCloseable single thread Single Responsibility Principle Anonymous class virtual method Adder java compile entityManagerFactory Class Variable Local Variable Runtime Data Area static class unchecked exception JDBC DRIVER tcp connection anagram gradle wrapper try-with-resources default method 배열 복사 HashSet 인접행렬 spring bean this() 부동소수점 오차 primitive type Initialization Spring Web MVC Spring Web TCP 3 Way Handshake JAVA_HOME multi thread file descriptor Directed Graph DriverManager checked exception implementation Min Heap instanceof configuration computer architecture Decorator pattern dispatch inode groovy arraylist Try-catch-finally Scheduling Variable Backtracking JUnit classpath file system java native interface LINKING encapsulation 구현 참조변수 super() initialization block sorting Singleton OCP composition overloading 진법 scope Unicode Dependency method area operand stack pc register class loader garbage collection literal http request HTTP response IntelliJ Dijkstra structure data structure Hosting orm connection H2 ENCRYPT Runnable controller UTF-8 Scheduler RISC CISC datasource localhost runtimeexception annotation hibernate Call by value char switch json refactoring 연산자 SQL JDK Sort Import operator TCP/IP 보수 rollback instance error x86 buffer Compression cds arm static Override build vector Connection Pooling host Domain instruction Constant jar default PCB Lock inheritance View library package url Public reverse Resolution network CLASS Protected private final Model super