Core Java Project Overview

This repository contains Core Java concepts organized in a package-wise structure with .md documentation and example programs. The project is designed as a learning and reference repository for Java fundamentals.

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Topics Covered in This Project

The following Core Java topics are included or planned to be covered in this repository.

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1. Java Basics

• Introduction to Java
• Java program structure
• Compilation and execution process
• JVM, JRE, JDK overview

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2. Data Types

• Primitive data types
• Non-primitive data types
• Type casting

Package:

datatype

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3. Variables

• Local variables
• Instance variables
• Static variables

Package:

localglobal

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4. Operators

• Arithmetic operators
• Relational operators
• Logical operators
• Assignment operators
• Unary operators
• Ternary operator
• Bitwise operators

Package:

operators

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5. Control Statements

Conditional Statements

• if
• if-else
• nested if
• switch

Looping Statements

• for loop
• while loop
• do-while loop

Jump Statements

• break
• continue
• return

Package:

controlstatements

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6. Arrays

• Single dimensional array
• Multi-dimensional array
• Array iteration
• Array input using Scanner

Package:

arrays

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7. User Input

Programs for reading input using:

• Scanner class

Packages:

scanner

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8. OOPs

• Classes and objects
• Methods
• Method parameters
• Method overloading

Package:

classesobjects
methods

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9. Constructors

Examples demonstrating:

• Default constructor
• Parameterized constructor
• Copy constructor
• Constructor overloading

Package:

constructor

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10. Object Class Methods

Implementation of common methods inherited from Object class:

• toString()
• equals()
• hashCode()
• getClass()

Package:

objectclass

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11. Strings

Topics related to string handling:

• String class
• String methods
• StringBuilder
• StringBuffer

Package:

string

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12. Access Modifiers

Examples showing usage of:

• public
• private
• protected
• default

Package:

accessmodifier

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13. Static Keyword

• Static variables
• Static methods
• Static blocks

Package:

statickeyword

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14. Final Keyword

Usage of:

• final variables
• final methods
• final classes

Package:

finalkeyword

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15. Exception Handling

Basic exception handling concepts:

• try
• catch
• finally
• throw
• throws

Package:

exceptionhandling

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16. Collections Framework (Basic)

Introduction to common collections:

• ArrayList
• LinkedList
• HashSet
• HashMap

Package:

collections

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Project Package Structure

core-java
│
└── src
    └── com
        └── core
            └── java
                ├── basics
                ├── datatype
                ├── localglobal
                ├── operators
                ├── controlstatements
                ├── arrays
                ├── scanner
                ├── commandline
                ├── classesobjects
                ├── methods
                ├── constructor
                ├── objectclass
                ├── string
                ├── accessmodifier
                ├── statickeyword
                ├── finalkeyword
                ├── exceptionhandling
                └── collections

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Purpose of This Repository

This project is created to:

• Learn Core Java fundamentals
• Practice Java concepts using small examples
• Maintain organized package-wise code structure
• Provide documentation using Markdown files
• Serve as a reference for Java beginners

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Repository Goal

To build a complete Core Java learning repository that gradually covers:

• Java fundamentals
• Object-oriented programming concepts
• Standard Java libraries
• Basic collections and exception handling