Update README.md

Author: saudahmedkadapa

README.md

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 # JavaProgramming
-Java Codes
+Key Concepts in Core Java:
+Object-Oriented Programming (OOP):
+
+Classes and Objects: Core building blocks of Java programs.
+Inheritance: Mechanism to reuse code and create relationships between classes.
+Polymorphism: Ability to process objects differently based on their data type or class.
+Abstraction: Hiding implementation details and showing only essential features.
+Encapsulation: Keeping fields within a class private and providing access through public methods.
+Basic Syntax and Constructs:
+
+Data Types: Primitive types (int, char, boolean) and reference types (objects).
+Control Statements: If-else, switch, loops (for, while), etc.
+Exception Handling: Try-catch blocks, throw, throws, and custom exceptions for error handling.
+Collections Framework:
+
+Lists, Sets, Maps: Data structures like ArrayList, HashSet, and HashMap to store and manipulate groups of objects efficiently.
+Iterators: To traverse collections.
+Multithreading:
+
+Thread Class and Runnable Interface: Creating and managing multiple threads to execute tasks concurrently.
+Synchronization: Ensuring thread safety when multiple threads interact with shared resources.
+Java Input/Output (I/O):
+
+Streams: For reading from and writing to files, consoles, and other I/O sources.
+Serialization: Converting an object’s state into a byte stream to store or transmit.
+Memory Management:
+
+Garbage Collection: Automatic memory management that reclaims memory from objects no longer in use.
+Heap and Stack: Memory areas used for dynamic memory allocation and method execution.
+JVM (Java Virtual Machine):
+
+Platform Independence: Bytecode compiled by the Java compiler runs on any machine that has a JVM.
+ClassLoader: Loads classes dynamically at runtime.
+JIT Compiler: Optimizes bytecode into machine code for faster execution.