Core Java Complete Notes By Durga Sir

: Handles instructions derived from native languages like C or C++. Data Types and Literals

Emphasize immutability, thread safety, and memory allocations inside the String Constant Pool (SCP).

Let me know if you have any questions or need further clarification on any of the topics. core java complete notes by durga sir

Handling groups of objects.

This in-depth article explores what makes these notes an industry standard and how learners can best use them. : Handles instructions derived from native languages like

| Module | Topics Covered | Distinguishing Feature | | :--- | :--- | :--- | | | Tokens, Data Types, Literals, Arrays, Var-arg methods, main() method explanation. | Deep dive into static blocks and main method overloading/inheritance. | | OOP | Coupling, Cohesion, extends , implements , IS-A vs HAS-A, Polymorphism (Overloading vs Overriding), final keyword. | Strict rules for method overriding (covariant returns, exceptions). | | Exception Handling | Try-catch-finally, throw vs throws , Custom exceptions, Error vs Exception. | Flow diagrams for exception propagation. | | Multithreading | Thread states, synchronized keyword, Inter-thread communication ( wait() , notify() ), Deadlock, Lock framework (basic). | Explanation of Race Condition with visual memory models. | | I/O Streams | File , FileInputStream , Serialization/Deserialization, transient keyword. | Serialization quirks (static variables, parent class constructors). | | Collections | List , Set , Map (HashMap vs Hashtable), Queue , Sorting ( Comparable vs Comparator ), Utility classes ( Collections , Arrays ). | Detailed internal implementation of HashMap (Load factor, Threshold). | | Java 8 Features | Lambda expressions, Stream API, Default methods, Method references. | Practical mapping of functional interfaces. |

The famous contract: If you override equals() , you override hashCode() . Handling groups of objects

He meticulously explains vs Explicit (Narrowing) .