I am a Java Developer since 2005.
If I am to start learning Java in 2025, I'll do this:
If I am to start learning Java in 2025, I'll do this:
➊ Introduction
Effort: 1 to 2 hours daily + Normal practice
Time: 2 weeks
✧ Overview of Java
✧ Setting up [JDK, JRE, IDE]
✧ Basic Syntax and Structure
✧ Primitive Data Types
✧ Variables and Constants
✧ Operators
Effort: 1 to 2 hours daily + Normal practice
Time: 2 weeks
✧ Overview of Java
✧ Setting up [JDK, JRE, IDE]
✧ Basic Syntax and Structure
✧ Primitive Data Types
✧ Variables and Constants
✧ Operators
➋ Control Flow
Effort: 1 to 2 hours daily + Normal practice
Time: 2 weeks
✧ Conditional Statements
❯ if, if else, else if, switch
✧ Loops
❯ while, for, do-while
✧ break and continue
✧ Exception Handling
❯ try, catch, finally
Effort: 1 to 2 hours daily + Normal practice
Time: 2 weeks
✧ Conditional Statements
❯ if, if else, else if, switch
✧ Loops
❯ while, for, do-while
✧ break and continue
✧ Exception Handling
❯ try, catch, finally
➌ Object Oriented Programming
Effort: 2 hours daily + Moderate practice
Time: 3 weeks
✧ Classes and Objects
✧ Constructors and Methods
✧ Encapsulation, Inheritance, and Polymorphism
✧ Abstraction
✧ Packages
✧ Access Modifiers
Effort: 2 hours daily + Moderate practice
Time: 3 weeks
✧ Classes and Objects
✧ Constructors and Methods
✧ Encapsulation, Inheritance, and Polymorphism
✧ Abstraction
✧ Packages
✧ Access Modifiers
➍ Advanced Data Types
Effort: 2 hours daily + Moderate practice
Time: 2 weeks
✧ Arrays
✧ Strings
✧ Dates and Times
Effort: 2 hours daily + Moderate practice
Time: 2 weeks
✧ Arrays
✧ Strings
✧ Dates and Times
➎ Advanced OOPs
Effort: 2 hours daily + Moderate practice
Time: 6 weeks
✧ Exception Handling
❯ Checked and Unchecked Exceptions
✧ Abstract Classes
✧ Interfaces
✧ Functional Interfaces and Lambdas
✧ Enums
✧ static and final Keywords
✧ Generics
Effort: 2 hours daily + Moderate practice
Time: 6 weeks
✧ Exception Handling
❯ Checked and Unchecked Exceptions
✧ Abstract Classes
✧ Interfaces
✧ Functional Interfaces and Lambdas
✧ Enums
✧ static and final Keywords
✧ Generics
➏ Collections Framework
Effort: 2 hours daily + Moderate practice
Time: 3 weeks
✧ List
❯ ArrayList, LinkedList
✧ Set
❯ HashSet
✧ Tree
✧ Map
❯ HashMap
✧ Iterator
✧ Sorting
❯ Comparable, Comparator
✧ Searching
Effort: 2 hours daily + Moderate practice
Time: 3 weeks
✧ List
❯ ArrayList, LinkedList
✧ Set
❯ HashSet
✧ Tree
✧ Map
❯ HashMap
✧ Iterator
✧ Sorting
❯ Comparable, Comparator
✧ Searching
➐ Multi-threading and Concurrency
Effort: 2 hours daily + Moderate practice
Time: 3 weeks
✧ Introduction to Threads
✧ Creating and Managing Threads
✧ Synchronization and Thread Safety
✧ Thread Pools and Executors
Effort: 2 hours daily + Moderate practice
Time: 3 weeks
✧ Introduction to Threads
✧ Creating and Managing Threads
✧ Synchronization and Thread Safety
✧ Thread Pools and Executors
➑ Advanced Java Concepts
Effort: 2 hours daily + Moderate practice
Time: 6 weeks
Project: 3 weeks (extra)
✧ Streams
✧ I/O
✧ Serialization and Deserialization
✧ JDBC
✧ Servlets and JSPs
✧ JMS
Effort: 2 hours daily + Moderate practice
Time: 6 weeks
Project: 3 weeks (extra)
✧ Streams
✧ I/O
✧ Serialization and Deserialization
✧ JDBC
✧ Servlets and JSPs
✧ JMS
➒ Taking it Forward
Time: 15 weeks
Project: 5 weeks (extra)
✧ Design Patterns
✧ Unit Testing, TDD
✧ Building Applications
❯ JAR, WAR, EAR files
❯ Maven
✧ Enterprise Applications
❯ Spring
❯ Hibernate
❯ Jakarta EE
❯ Kafka
Time: 15 weeks
Project: 5 weeks (extra)
✧ Design Patterns
✧ Unit Testing, TDD
✧ Building Applications
❯ JAR, WAR, EAR files
❯ Maven
✧ Enterprise Applications
❯ Spring
❯ Hibernate
❯ Jakarta EE
❯ Kafka
🏁 Final Words
⬘ Java is a relatively a complex language. Start with simple topics to keep your interests built.
⬗ While learning the theories, keep practicing and build projects as well.
⬙ Spend at least 2 hours/day learning and practicing.
Good luck.
⬘ Java is a relatively a complex language. Start with simple topics to keep your interests built.
⬗ While learning the theories, keep practicing and build projects as well.
⬙ Spend at least 2 hours/day learning and practicing.
Good luck.
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