📚 Java Roadmap

JAVA ROADMAP

Elementar asoslardan professional darajagacha to'liq yo'l xaritasi

🌱 Level 1: Boshlang'ich

⚙️Muhitni sozlash

  • JDK (Java Development Kit) o'rnatish
  • IDE tanlash: IntelliJ IDEA / Eclipse / VS Code
  • Birinchi "Hello World" dasturi
  • Komanda qatori bilan ishlash
  • Java fayl tuzilishi (.java, .class)
⏱ 3-5 kun

🔤Asosiy sintaksis

  • O'zgaruvchilar va ma'lumot turlari (int, double, String, boolean)
  • Operatorlar (arifmetik, mantiqiy, taqqoslash)
  • Izohlar (yozish uslubi)
  • Klaviaturadan kiritish (Scanner)
  • Ekranga chiqarish (System.out.println)
⏱ 1 hafta

🔀Boshqarish tuzilmalari

  • If-else shartli operatorlari
  • Switch-case konstruksiyasi
  • For tsikli
  • While va do-while tsikllari
  • Break va continue
⏱ 1 hafta

📊Massivlar

  • Bir o'lchovli massivlar
  • Ko'p o'lchovli massivlar
  • Massivlar bilan ishlash (qo'shish, o'chirish, izlash)
  • Arrays sinfi metodlari
  • For-each tsikli
⏱ 1 hafta
📦 Level 2: Asosiy tushunchalar

🎯Metodlar

  • Metod yaratish va chaqirish
  • Parametrlar va qaytarish turlari
  • Method overloading
  • Rekursiya asoslari
  • Scope va lifetime
⏱ 1 hafta

🏗️OOP: Sinflar va obyektlar

  • Sinf (class) yaratish
  • Obyekt (object) tushunchasi
  • Konstruktorlar
  • This kalit so'zi
  • Getter va Setter metodlari
  • Encapsulation (inkapsulyatsiya)
⏱ 2 hafta

🧬Meros (Inheritance)

  • Meros tushunchasi
  • Super kalit so'zi
  • Method overriding
  • Polymorphism asoslari
  • Final kalit so'zi
⏱ 1.5 hafta

📝String bilan ishlash

  • String metodlari (length, substring, indexOf, etc.)
  • String immutability
  • StringBuilder va StringBuffer
  • String manipulation
  • Regular expressions asoslari
⏱ 1 hafta
🚀 Level 3: O'rta daraja

🎭Abstrakt sinflar va Interfeys

  • Abstract class va abstract metodlar
  • Interface yaratish va implement qilish
  • Multiple inheritance interfeys orqali
  • Default va static metodlar interfeyslarda
  • Functional interfaces
⏱ 2 hafta

⚠️Exception Handling

  • Try-catch bloki
  • Multiple catch bloklari
  • Finally bloki
  • Throw va throws
  • Custom exceptions yaratish
  • Checked vs Unchecked exceptions
⏱ 1.5 hafta

📚Collections Framework

  • List: ArrayList, LinkedList
  • Set: HashSet, TreeSet, LinkedHashSet
  • Map: HashMap, TreeMap, LinkedHashMap
  • Queue va Deque
  • Iterator va ListIterator
  • Collections sinfi metodlari
⏱ 2 hafta

📁File I/O

  • File va Path sinflari
  • FileReader va FileWriter
  • BufferedReader va BufferedWriter
  • InputStream va OutputStream
  • Serialization va Deserialization
⏱ 1.5 hafta

🔧Generics

  • Generic sinflar
  • Generic metodlar
  • Bounded type parameters
  • Wildcards (?, extends, super)
  • Type erasure
⏱ 1 hafta

⏰Sanalar bilan ishlash

  • LocalDate, LocalTime, LocalDateTime
  • ZonedDateTime
  • Period va Duration
  • DateTimeFormatter
  • Eski Date va Calendar (legacy)
⏱ 1 hafta
💎 Level 4: Ilg'or

🧵Multithreading

  • Thread yaratish (Thread sinfi, Runnable)
  • Thread lifecycle
  • Synchronized kalit so'zi
  • Wait, notify, notifyAll
  • ExecutorService va Thread pools
  • Concurrent collections
  • Deadlock, race condition
⏱ 2-3 hafta

⚡Lambda va Streams

  • Lambda expressions
  • Functional interfaces (Predicate, Consumer, Function)
  • Stream API asoslari
  • Intermediate operations (filter, map, sorted)
  • Terminal operations (collect, forEach, reduce)
  • Parallel streams
  • Optional sinfi
⏱ 2 hafta

🪞Reflection API

  • Class sinfi
  • Metodlarni runtime paytida chaqirish
  • Field va Constructor bilan ishlash
  • Annotations yaratish va ishlatish
  • Annotation processing
⏱ 1.5 hafta

🌐Network Programming

  • Socket programming
  • ServerSocket va Client-Server arxitektura
  • URL va URLConnection
  • HTTP so'rovlar (HttpClient API)
  • JSON parsing (Jackson, Gson)
⏱ 2 hafta

🗄️JDBC - Database bilan ishlash

  • JDBC driver o'rnatish
  • Database connection yaratish
  • Statement va PreparedStatement
  • ResultSet bilan ishlash
  • Transaction management
  • Connection pooling
⏱ 2 hafta

🧪Unit Testing

  • JUnit framework
  • Test lifecycle (@Before, @After)
  • Assertions
  • Mockito framework
  • Test-Driven Development (TDD)
  • Code coverage
⏱ 1.5 hafta
🏛️ Level 5: Framework va Vositalar

🌿Spring Framework

  • Spring Core (IoC, Dependency Injection)
  • Spring Boot asoslari
  • Spring MVC va REST API
  • Spring Data JPA
  • Spring Security
  • Spring Configuration
⏱ 1-2 oy

🗂️Hibernate ORM

  • ORM tushunchasi
  • Entity mapping
  • HQL (Hibernate Query Language)
  • Criteria API
  • Caching strategies
  • Lazy vs Eager loading
⏱ 3 hafta

📦Build Tools

  • Maven: POM fayl, dependencies
  • Gradle asoslari
  • Build lifecycle
  • Plugins va configurations
  • Dependency management
⏱ 2 hafta

🔌RESTful Web Services

  • REST principles
  • HTTP metodlari (GET, POST, PUT, DELETE)
  • JSON va XML
  • JAX-RS (Jersey)
  • Spring Boot REST Controllers
  • API versioning va documentation
⏱ 2 hafta

🐳DevOps Tools

  • Git va GitHub
  • Docker asoslari
  • CI/CD (Jenkins, GitHub Actions)
  • Logging (Log4j, SLF4J)
  • Application monitoring
⏱ 3 hafta

☁️Microservices

  • Microservices architecture
  • Service discovery (Eureka)
  • API Gateway (Zuul, Spring Cloud Gateway)
  • Config Server
  • Message queues (RabbitMQ, Kafka)
⏱ 1 oy
🏆 Level 6: Ekspert

🎨Design Patterns

  • Creational patterns (Singleton, Factory, Builder)
  • Structural patterns (Adapter, Decorator, Proxy)
  • Behavioral patterns (Observer, Strategy, Command)
  • SOLID principles
  • Anti-patterns
⏱ 1 oy

⚙️JVM Internals

  • JVM arxitekturasi
  • Classloading mechanism
  • Memory model (Heap, Stack)
  • Garbage Collection algorithms
  • JVM tuning va optimization
  • JVM monitoring tools
⏱ 3 hafta

⚡Performance Tuning

  • Profiling tools (JProfiler, VisualVM)
  • Memory leak detection
  • Code optimization techniques
  • Database query optimization
  • Caching strategies (Redis, Hazelcast)
⏱ 2 hafta

🔒Security Best Practices

  • Authentication va Authorization
  • JWT tokens
  • OAuth 2.0 va OpenID Connect
  • SQL Injection prevention
  • XSS va CSRF protection
  • Secure coding practices
⏱ 2 hafta

🧩Reactive Programming

  • Reactive principles
  • Project Reactor
  • RxJava
  • Spring WebFlux
  • Non-blocking I/O
⏱ 3 hafta

📊System Design

  • Scalability patterns
  • Load balancing
  • Database sharding
  • CAP theorem
  • Event-driven architecture
  • CQRS pattern
⏱ 1 oy

🎯 Muvaffaqiyatli o'rganish uchun maslahatlar

💻

Amaliyot, amaliyot, amaliyot!

Har kungi 2-3 soat kod yozish nazariyani o'qishdan 10 barobar samaraliroq

🏗️

Loyihalar yarating

Todo app, calculator, chat app kabi real loyihalar orqali o'rganing

📖

Kod o'qing

GitHub'dagi ochiq kodli loyihalarni o'rganing va tahlil qiling

🤝

Jamoa bilan ishlang

Telegram, Discord guruhlariga qo'shiling, code review qiling

🐛

Xatolardan qo'rqmang

Har bir error - yangi bilim. Debug qilishni o'rganing

📚

Dokumentatsiya - do'stingiz

Oracle Java docs va Stack Overflow - eng yaxshi do'stlaringiz

⏰

Muntazamlik - kalit

Har kuni ozgina o'rganish haftada bir marta ko'pdan yaxshiroq

🎯

Maqsad qo'ying

Har hafta yangi narsani o'rganish va qo'llash maqsadi qo'ying

🚀

Deploy qiling

Loyihalaringizni Heroku, AWS yoki DigitalOcean'ga deploy qiling

📅 Umumiy davomiyligi

Boshlang'ichdan ekspertgacha: 12-18 oy
(Kuniga 3-4 soat intensiv o'rganish bilan)

⚠️ Esda tuting: Bu roadmap - tavsiya. Har bir inson o'z sur'atida o'rganadi.
Muhimi - doimiy amaliyot va qiziqish!