Java Engineering Roadmap
As a Java developer,
I’ve compiled extensive notes on Java that cover everything from basics to advanced concepts! Whether you're a beginner or looking to level up your skills, these notes have something for everyone!
🔰 Basics of Java
- First Java Program Internals
- JDK, JRE, JVM (Java Virtual Machine)
- JVM Memory Management
- JVM Architecture or Internal Details
- Memory Management (Garbage Collection in Depth)
🏗️ Class, Object, and Types of Classes
- Naming Convention of Java
- Life Cycle of an Object
- Anonymous Objects in Java
- Serialization and Deserialization
🔢 Data Types, Variables, Constants, and Literals
- Java Variables and Non-Primitive Data Types
- Types of Variables (Local, Instance, Static)
🛠️ Methods in Java
- Methods
- Static Method and Instance Method
- Main Method
🚧 Constructors in Java
- Constructor
- Constructor Overloading
- Constructor Chaining in Java
- Copy Constructor in Java
🔒 Modifiers in Java
- Types of Access Specifiers
- Non-Access Modifiers
⚙️ Static Keyword
- Static Variable
- Static Method
- Static Block
🔑 Final Keyword
- Final Keyword
- Final Variable
- Final Method
- Final Class
🏛️ Inner Class in Java
- What is Inner Class in Java?
- Properties of Inner Class
- Instantiating Inner Class
- Types of Inner Class in Java
💡 Super Keyword
- Super Keyword
- Calling of Superclass Instance Variable
- Superclass Constructor
- Superclass Method
🔍 This Keyword
- This Keyword
- Difference Between Super and This
💥 OOPs Concepts
- Encapsulation
- Inheritance
- Polymorphism
- Abstraction
📂 Collections Framework
- What is the Collection Framework?
- Map,Set,Queue,List
- Comparator vs Comparable and PriorityQueue
⚠️ Exception Handling
- Exception Handling in Java
- Error vs Exception
- Types of Exceptions
- Try-catch Block
- Multiple Catch Block
- Nested Try Block
- Finally Block
- Throw vs Throws
- Finally vs Finalize
- Java Custom Exceptions
- Throwable Class
🧵 String, StringBuffer, StringBuilder
- Immutable String
- String Comparison
- StringBuffer and StringBuilder Class
- String, StringBuilder, StringBuffer Differences
🛠️ Multithreading
- Thread Creation
- Thread Class vs Runnable Interface
- Join Method
- Synchronized Keyword
- Thread Lifecycle
- Inter-Thread Communication
- Daemon Thread, Thread Priority
- Callable Interface
- Difference Between Runnable and Callable
- Locks and Condition
- Lock-Free Concurrency
- Thread Pools
- Thread Pool Executor
- Volatile Keyword
- Interrupting Threads
I’ve compiled extensive notes on Java that cover everything from basics to advanced concepts! Whether you're a beginner or looking to level up your skills, these notes have something for everyone!
🔰 Basics of Java
- First Java Program Internals
- JDK, JRE, JVM (Java Virtual Machine)
- JVM Memory Management
- JVM Architecture or Internal Details
- Memory Management (Garbage Collection in Depth)
🏗️ Class, Object, and Types of Classes
- Naming Convention of Java
- Life Cycle of an Object
- Anonymous Objects in Java
- Serialization and Deserialization
🔢 Data Types, Variables, Constants, and Literals
- Java Variables and Non-Primitive Data Types
- Types of Variables (Local, Instance, Static)
🛠️ Methods in Java
- Methods
- Static Method and Instance Method
- Main Method
🚧 Constructors in Java
- Constructor
- Constructor Overloading
- Constructor Chaining in Java
- Copy Constructor in Java
🔒 Modifiers in Java
- Types of Access Specifiers
- Non-Access Modifiers
⚙️ Static Keyword
- Static Variable
- Static Method
- Static Block
🔑 Final Keyword
- Final Keyword
- Final Variable
- Final Method
- Final Class
🏛️ Inner Class in Java
- What is Inner Class in Java?
- Properties of Inner Class
- Instantiating Inner Class
- Types of Inner Class in Java
💡 Super Keyword
- Super Keyword
- Calling of Superclass Instance Variable
- Superclass Constructor
- Superclass Method
🔍 This Keyword
- This Keyword
- Difference Between Super and This
💥 OOPs Concepts
- Encapsulation
- Inheritance
- Polymorphism
- Abstraction
📂 Collections Framework
- What is the Collection Framework?
- Map,Set,Queue,List
- Comparator vs Comparable and PriorityQueue
⚠️ Exception Handling
- Exception Handling in Java
- Error vs Exception
- Types of Exceptions
- Try-catch Block
- Multiple Catch Block
- Nested Try Block
- Finally Block
- Throw vs Throws
- Finally vs Finalize
- Java Custom Exceptions
- Throwable Class
🧵 String, StringBuffer, StringBuilder
- Immutable String
- String Comparison
- StringBuffer and StringBuilder Class
- String, StringBuilder, StringBuffer Differences
🛠️ Multithreading
- Thread Creation
- Thread Class vs Runnable Interface
- Join Method
- Synchronized Keyword
- Thread Lifecycle
- Inter-Thread Communication
- Daemon Thread, Thread Priority
- Callable Interface
- Difference Between Runnable and Callable
- Locks and Condition
- Lock-Free Concurrency
- Thread Pools
- Thread Pool Executor
- Volatile Keyword
- Interrupting Threads