Project-4

📘 Week 4 Java Mini Projects - README

Welcome to the Week 4 Java Mini Projects Repository! This week focused on solidifying core concepts in Linked Lists, revising Object-Oriented Programming (OOP), and practicing with Java Collections Framework. Below are the three mini projects built and explained with usage and structure.

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🔹 1. Linked List Manager (Reversing, Adding, Deleting Nodes)

📄 Description:

This project demonstrates the implementation of a singly linked list in Java, with methods to:

• Add elements to the beginning or end
• Delete from the beginning or end
• Reverse the list using iteration
• Print the list

🛠️ Concepts Used:

• Class & Object
• Pointers and Node chaining
• Iteration for reversal

🚀 How to Run:

javac LinkedListManager.java
java LinkedListManager

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🔹 2. OOP-Based Student Management System

📄 Description:

A simple system to manage student records using the OOP principles like:

• Encapsulation
• Constructor initialization
• Object arrays

🛠️ Features:

• Create student objects
• Display student details using methods

🚀 How to Run:

javac StudentSystem.java
java StudentSystem

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🔹 3. Collections Practice Toolkit - Word Frequency Counter

📄 Description:

Reads a string from user input and counts frequency of each word using Java HashMap.

🛠️ Concepts Used:

• HashMap
• String manipulation
• Scanner and loops

🚀 How to Run:

javac WordFrequencyCounter.java
java WordFrequencyCounter

📌 Sample Output:

Input: This is Java and Java is fun
Output:
This: 1
is: 2
Java: 2
and: 1
fun: 1

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📂 Folder Structure:

Week4_Java_Projects/
├── LinkedListManager.java
├── StudentSystem.java
├── WordFrequencyCounter.java
└── README.md

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✅ Additional Notes:

• All programs are console-based and beginner-friendly.
• Each file includes comments for clarity.
• You can expand these projects further as you grow.

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🔗 GitHub Repository

You can upload this folder to GitHub to showcase your work and maintain progress documentation.

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#Java #LinkedList #OOP #Collections #MiniProjects #Upskilling #LearningJava