JavaProgramsSem4

A repository containing all Java programs developed during Object Oriented Programming with Java Lab Sessions at Unitedworld School of Computational Intelligence (USCI), Karnavati University.

📚 Overview

This repository serves as a resource for practicing and revising core Java concepts, OOP principles, and exception handling, along with some real-world problem-solving using Java. Each program is designed to help students solidify their understanding of Java programming.

📝 List of Programs

🧑‍💻 Basic Programs

Print "Hello World! This is my First Java Program."
Perform arithmetic operations (+, −, ×, ÷) on two numbers.
Find the greatest of three entered numbers.
Find the lowest of three entered numbers.
Check whether a number is odd or even.
Convert distance from KM to Miles and vice versa.
Convert temperature from Celsius to Fahrenheit and vice versa.
Print the Fibonacci sequence up to n terms.
Compare two floating-point numbers up to three decimal places.
Identify if the entered character is a vowel or consonant with error handling for invalid input.
Check if a year is a leap year.
Display the first 10 natural numbers.
Display the multiplication table for a given number.

🔢 Patterns

Print a triangle pattern with repeating numbers:
```
1
22
333
4444
```
Print a triangle pattern with incremented numbers:
```
1
2 3
4 5 6
7 8 9 10
```

👨‍🏫 Object-Oriented Programs

Add two numbers using class and object.
Create a Student class with marks for 3 subjects, calculate average.
Implement single inheritance using Person and Employee classes.
Create a class hierarchy with a base class Shape, and derived classes Circle, Rectangle, and Triangle. Implement area() and perimeter() methods.
Develop a simple online shopping system using inheritance and polymorphism.
Implement BankAccount, with subclasses SavingsAccount and CheckingAccount, demonstrating method overriding.

📦 Package & Modular Java

Create a bookstore management system using Java packages:
- bookstore.book → Class: Book (title, author, ISBN, price)
- bookstore.inventory → Class: InventoryManager (add/update stock, retrieve book details)

🔁 Loops, Recursion & Numbers

Find factorial of a number.
Find sum of digits of a number.

🛑 Exception Handling

Handle ArithmeticException using try-catch.
Handle ArrayIndexOutOfBoundsException using try-catch.
Use throw keyword to create a custom exception.
Use throws keyword to handle a custom exception.

🧵 Multithreading

Demonstrate multithreading with count from 1 to 5 with a 1-second delay.

📦 Wrapper Classes & Built-in Methods

Perform autoboxing and unboxing.
Use 5 methods from the Math class.
Use 5 methods from the String class.
Use 5 methods from the StringBuffer class.

📁 Folder Structure

JavaProgramsSem4/
├── Program01_HelloWorld.java
├── Program02_ArithmeticOperations.java
├── ...
├── bookstore/
│ ├── book/
│ │ └── Book.java
│ └── inventory/
│ └── InventoryManager.java
└── README.md
---
## 🤝 Contributing
Contributions are welcome! If you’d like to improve a program, fix a bug, or add a new Java exercise, feel free to:
1. Fork the repository
2. Create a new branch (`git checkout -b feature-name`)
3. Commit your changes (`git commit -m 'Add new feature'`)
4. Push to the branch (`git push origin feature-name`)
5. Open a Pull Request
---
## 📜 License
This project is licensed under the [MIT License](LICENSE). Feel free to use, modify, and distribute the code with attribution.
---
## 🙌 Acknowledgments
- Java Documentation: [docs.oracle.com](https://docs.oracle.com/javase/8/docs/)
- Lab Instructors and Faculty at USCI, Karnavati University
- Open-source contributors and the Java community
---
## ✨ Author
**Yash Wadhvani** 3rd Year B.Tech CSE Student Unitedworld School of Computational Intelligence (USCI), Karnavati University 📫 [LinkedIn](https://www.linkedin.com/in/yashwadhvani/) • [GitHub](https://github.com/YashWadhvani)

JavaProgramsSem4

A repository containing all Java programs developed during Object Oriented Programming with Java Lab Sessions at Unitedworld School of Computational Intelligence (USCI), Karnavati University.

📚 Overview

This repository serves as a resource for practicing and revising core Java concepts, OOP principles, and exception handling, along with some real-world problem-solving using Java. Each program is designed to help students solidify their understanding of Java programming.

📝 List of Programs

🧑‍💻 Basic Programs

Print "Hello World! This is my First Java Program."
Perform arithmetic operations (+, −, ×, ÷) on two numbers.
Find the greatest of three entered numbers.
Find the lowest of three entered numbers.
Check whether a number is odd or even.
Convert distance from KM to Miles and vice versa.
Convert temperature from Celsius to Fahrenheit and vice versa.
Print the Fibonacci sequence up to n terms.
Compare two floating-point numbers up to three decimal places.
Identify if the entered character is a vowel or consonant with error handling for invalid input.
Check if a year is a leap year.
Display the first 10 natural numbers.
Display the multiplication table for a given number.

🔢 Patterns

Print a triangle pattern with repeating numbers:
```
1
22
333
4444
```
Print a triangle pattern with incremented numbers:
```
1
2 3
4 5 6
7 8 9 10
```

👨‍🏫 Object-Oriented Programs

Add two numbers using class and object.
Create a Student class with marks for 3 subjects, calculate average.
Implement single inheritance using Person and Employee classes.
Create a class hierarchy with a base class Shape, and derived classes Circle, Rectangle, and Triangle. Implement area() and perimeter() methods.
Develop a simple online shopping system using inheritance and polymorphism.
Implement BankAccount, with subclasses SavingsAccount and CheckingAccount, demonstrating method overriding.

📦 Package & Modular Java

Create a bookstore management system using Java packages:
- bookstore.book → Class: Book (title, author, ISBN, price)
- bookstore.inventory → Class: InventoryManager (add/update stock, retrieve book details)

🔁 Loops, Recursion & Numbers

Find factorial of a number.
Find sum of digits of a number.

🛑 Exception Handling

Handle ArithmeticException using try-catch.
Handle ArrayIndexOutOfBoundsException using try-catch.
Use throw keyword to create a custom exception.
Use throws keyword to handle a custom exception.

🧵 Multithreading

Demonstrate multithreading with count from 1 to 5 with a 1-second delay.

📦 Wrapper Classes & Built-in Methods

Perform autoboxing and unboxing.
Use 5 methods from the Math class.
Use 5 methods from the String class.
Use 5 methods from the StringBuffer class.

📁 Folder Structure

JavaProgramsSem4/
├── Program01_HelloWorld.java
├── Program02_ArithmeticOperations.java
├── ...
├── bookstore/
│ ├── book/
│ │ └── Book.java
│ └── inventory/
│ └── InventoryManager.java
└── README.md
---
## 🤝 Contributing
Contributions are welcome! If you’d like to improve a program, fix a bug, or add a new Java exercise, feel free to:
1. Fork the repository
2. Create a new branch (`git checkout -b feature-name`)
3. Commit your changes (`git commit -m 'Add new feature'`)
4. Push to the branch (`git push origin feature-name`)
5. Open a Pull Request
---
## 📜 License
This project is licensed under the [MIT License](LICENSE). Feel free to use, modify, and distribute the code with attribution.
---
## 🙌 Acknowledgments
- Java Documentation: [docs.oracle.com](https://docs.oracle.com/javase/8/docs/)
- Lab Instructors and Faculty at USCI, Karnavati University
- Open-source contributors and the Java community
---
## ✨ Author
**Yash Wadhvani** 3rd Year B.Tech CSE Student Unitedworld School of Computational Intelligence (USCI), Karnavati University 📫 [LinkedIn](https://www.linkedin.com/in/yashwadhvani/) • [GitHub](https://github.com/YashWadhvani)

JavaProgramsSem4

A repository containing all Java programs developed during Object Oriented Programming with Java Lab Sessions at Unitedworld School of Computational Intelligence (USCI), Karnavati University.

📚 Overview

This repository serves as a resource for practicing and revising core Java concepts, OOP principles, and exception handling, along with some real-world problem-solving using Java. Each program is designed to help students solidify their understanding of Java programming.

📝 List of Programs

🧑‍💻 Basic Programs

Print "Hello World! This is my First Java Program."
Perform arithmetic operations (+, −, ×, ÷) on two numbers.
Find the greatest of three entered numbers.
Find the lowest of three entered numbers.
Check whether a number is odd or even.
Convert distance from KM to Miles and vice versa.
Convert temperature from Celsius to Fahrenheit and vice versa.
Print the Fibonacci sequence up to n terms.
Compare two floating-point numbers up to three decimal places.
Identify if the entered character is a vowel or consonant with error handling for invalid input.
Check if a year is a leap year.
Display the first 10 natural numbers.
Display the multiplication table for a given number.

🔢 Patterns

Print a triangle pattern with repeating numbers:
```
1
22
333
4444
```
Print a triangle pattern with incremented numbers:
```
1
2 3
4 5 6
7 8 9 10
```

👨‍🏫 Object-Oriented Programs

Add two numbers using class and object.
Create a Student class with marks for 3 subjects, calculate average.
Implement single inheritance using Person and Employee classes.
Create a class hierarchy with a base class Shape, and derived classes Circle, Rectangle, and Triangle. Implement area() and perimeter() methods.
Develop a simple online shopping system using inheritance and polymorphism.
Implement BankAccount, with subclasses SavingsAccount and CheckingAccount, demonstrating method overriding.

📦 Package & Modular Java

Create a bookstore management system using Java packages:
- bookstore.book → Class: Book (title, author, ISBN, price)
- bookstore.inventory → Class: InventoryManager (add/update stock, retrieve book details)

🔁 Loops, Recursion & Numbers

Find factorial of a number.
Find sum of digits of a number.

🛑 Exception Handling

Handle ArithmeticException using try-catch.
Handle ArrayIndexOutOfBoundsException using try-catch.
Use throw keyword to create a custom exception.
Use throws keyword to handle a custom exception.

🧵 Multithreading

Demonstrate multithreading with count from 1 to 5 with a 1-second delay.

📦 Wrapper Classes & Built-in Methods

Perform autoboxing and unboxing.
Use 5 methods from the Math class.
Use 5 methods from the String class.
Use 5 methods from the StringBuffer class.

📁 Folder Structure

JavaProgramsSem4/
├── Program01_HelloWorld.java
├── Program02_ArithmeticOperations.java
├── ...
├── bookstore/
│ ├── book/
│ │ └── Book.java
│ └── inventory/
│ └── InventoryManager.java
└── README.md
---
## 🤝 Contributing
Contributions are welcome! If you’d like to improve a program, fix a bug, or add a new Java exercise, feel free to:
1. Fork the repository
2. Create a new branch (`git checkout -b feature-name`)
3. Commit your changes (`git commit -m 'Add new feature'`)
4. Push to the branch (`git push origin feature-name`)
5. Open a Pull Request
---
## 📜 License
This project is licensed under the [MIT License](LICENSE). Feel free to use, modify, and distribute the code with attribution.
---
## 🙌 Acknowledgments
- Java Documentation: [docs.oracle.com](https://docs.oracle.com/javase/8/docs/)
- Lab Instructors and Faculty at USCI, Karnavati University
- Open-source contributors and the Java community
---
## ✨ Author
**Yash Wadhvani** 3rd Year B.Tech CSE Student Unitedworld School of Computational Intelligence (USCI), Karnavati University 📫 [LinkedIn](https://www.linkedin.com/in/yashwadhvani/) • [GitHub](https://github.com/YashWadhvani)

JavaProgramsSem4

A repository containing all Java programs developed during Object Oriented Programming with Java Lab Sessions at Unitedworld School of Computational Intelligence (USCI), Karnavati University.

📚 Overview

This repository serves as a resource for practicing and revising core Java concepts, OOP principles, and exception handling, along with some real-world problem-solving using Java. Each program is designed to help students solidify their understanding of Java programming.

📝 List of Programs

🧑‍💻 Basic Programs

Print "Hello World! This is my First Java Program."
Perform arithmetic operations (+, −, ×, ÷) on two numbers.
Find the greatest of three entered numbers.
Find the lowest of three entered numbers.
Check whether a number is odd or even.
Convert distance from KM to Miles and vice versa.
Convert temperature from Celsius to Fahrenheit and vice versa.
Print the Fibonacci sequence up to n terms.
Compare two floating-point numbers up to three decimal places.
Identify if the entered character is a vowel or consonant with error handling for invalid input.
Check if a year is a leap year.
Display the first 10 natural numbers.
Display the multiplication table for a given number.

🔢 Patterns

Print a triangle pattern with repeating numbers:
```
1
22
333
4444
```
Print a triangle pattern with incremented numbers:
```
1
2 3
4 5 6
7 8 9 10
```

👨‍🏫 Object-Oriented Programs

Add two numbers using class and object.
Create a Student class with marks for 3 subjects, calculate average.
Implement single inheritance using Person and Employee classes.
Create a class hierarchy with a base class Shape, and derived classes Circle, Rectangle, and Triangle. Implement area() and perimeter() methods.
Develop a simple online shopping system using inheritance and polymorphism.
Implement BankAccount, with subclasses SavingsAccount and CheckingAccount, demonstrating method overriding.

📦 Package & Modular Java

Create a bookstore management system using Java packages:
- bookstore.book → Class: Book (title, author, ISBN, price)
- bookstore.inventory → Class: InventoryManager (add/update stock, retrieve book details)

🔁 Loops, Recursion & Numbers

Find factorial of a number.
Find sum of digits of a number.

🛑 Exception Handling

Handle ArithmeticException using try-catch.
Handle ArrayIndexOutOfBoundsException using try-catch.
Use throw keyword to create a custom exception.
Use throws keyword to handle a custom exception.

🧵 Multithreading

Demonstrate multithreading with count from 1 to 5 with a 1-second delay.

📦 Wrapper Classes & Built-in Methods

Perform autoboxing and unboxing.
Use 5 methods from the Math class.
Use 5 methods from the String class.
Use 5 methods from the StringBuffer class.

📁 Folder Structure

JavaProgramsSem4/
├── Program01_HelloWorld.java
├── Program02_ArithmeticOperations.java
├── ...
├── bookstore/
│ ├── book/
│ │ └── Book.java
│ └── inventory/
│ └── InventoryManager.java
└── README.md
---
## 🤝 Contributing
Contributions are welcome! If you’d like to improve a program, fix a bug, or add a new Java exercise, feel free to:
1. Fork the repository
2. Create a new branch (`git checkout -b feature-name`)
3. Commit your changes (`git commit -m 'Add new feature'`)
4. Push to the branch (`git push origin feature-name`)
5. Open a Pull Request
---
## 📜 License
This project is licensed under the [MIT License](LICENSE). Feel free to use, modify, and distribute the code with attribution.
---
## 🙌 Acknowledgments
- Java Documentation: [docs.oracle.com](https://docs.oracle.com/javase/8/docs/)
- Lab Instructors and Faculty at USCI, Karnavati University
- Open-source contributors and the Java community
---
## ✨ Author
**Yash Wadhvani** 3rd Year B.Tech CSE Student Unitedworld School of Computational Intelligence (USCI), Karnavati University 📫 [LinkedIn](https://www.linkedin.com/in/yashwadhvani/) • [GitHub](https://github.com/YashWadhvani)

JavaProgramsSem4

A repository containing all Java programs developed during Object Oriented Programming with Java Lab Sessions at Unitedworld School of Computational Intelligence (USCI), Karnavati University.

📚 Overview

This repository serves as a resource for practicing and revising core Java concepts, OOP principles, and exception handling, along with some real-world problem-solving using Java. Each program is designed to help students solidify their understanding of Java programming.

📝 List of Programs

🧑‍💻 Basic Programs

Print "Hello World! This is my First Java Program."
Perform arithmetic operations (+, −, ×, ÷) on two numbers.
Find the greatest of three entered numbers.
Find the lowest of three entered numbers.
Check whether a number is odd or even.
Convert distance from KM to Miles and vice versa.
Convert temperature from Celsius to Fahrenheit and vice versa.
Print the Fibonacci sequence up to n terms.
Compare two floating-point numbers up to three decimal places.
Identify if the entered character is a vowel or consonant with error handling for invalid input.
Check if a year is a leap year.
Display the first 10 natural numbers.
Display the multiplication table for a given number.

🔢 Patterns

Print a triangle pattern with repeating numbers:
```
1
22
333
4444
```
Print a triangle pattern with incremented numbers:
```
1
2 3
4 5 6
7 8 9 10
```

👨‍🏫 Object-Oriented Programs

Add two numbers using class and object.
Create a Student class with marks for 3 subjects, calculate average.
Implement single inheritance using Person and Employee classes.
Create a class hierarchy with a base class Shape, and derived classes Circle, Rectangle, and Triangle. Implement area() and perimeter() methods.
Develop a simple online shopping system using inheritance and polymorphism.
Implement BankAccount, with subclasses SavingsAccount and CheckingAccount, demonstrating method overriding.

📦 Package & Modular Java

Create a bookstore management system using Java packages:
- bookstore.book → Class: Book (title, author, ISBN, price)
- bookstore.inventory → Class: InventoryManager (add/update stock, retrieve book details)

🔁 Loops, Recursion & Numbers

Find factorial of a number.
Find sum of digits of a number.

🛑 Exception Handling

Handle ArithmeticException using try-catch.
Handle ArrayIndexOutOfBoundsException using try-catch.
Use throw keyword to create a custom exception.
Use throws keyword to handle a custom exception.

🧵 Multithreading

Demonstrate multithreading with count from 1 to 5 with a 1-second delay.

📦 Wrapper Classes & Built-in Methods

Perform autoboxing and unboxing.
Use 5 methods from the Math class.
Use 5 methods from the String class.
Use 5 methods from the StringBuffer class.

📁 Folder Structure

JavaProgramsSem4/
├── Program01_HelloWorld.java
├── Program02_ArithmeticOperations.java
├── ...
├── bookstore/
│ ├── book/
│ │ └── Book.java
│ └── inventory/
│ └── InventoryManager.java
└── README.md
---
## 🤝 Contributing
Contributions are welcome! If you’d like to improve a program, fix a bug, or add a new Java exercise, feel free to:
1. Fork the repository
2. Create a new branch (`git checkout -b feature-name`)
3. Commit your changes (`git commit -m 'Add new feature'`)
4. Push to the branch (`git push origin feature-name`)
5. Open a Pull Request
---
## 📜 License
This project is licensed under the [MIT License](LICENSE). Feel free to use, modify, and distribute the code with attribution.
---
## 🙌 Acknowledgments
- Java Documentation: [docs.oracle.com](https://docs.oracle.com/javase/8/docs/)
- Lab Instructors and Faculty at USCI, Karnavati University
- Open-source contributors and the Java community
---
## ✨ Author
**Yash Wadhvani** 3rd Year B.Tech CSE Student Unitedworld School of Computational Intelligence (USCI), Karnavati University 📫 [LinkedIn](https://www.linkedin.com/in/yashwadhvani/) • [GitHub](https://github.com/YashWadhvani)

JavaProgramsSem4

A repository containing all Java programs developed during Object Oriented Programming with Java Lab Sessions at Unitedworld School of Computational Intelligence (USCI), Karnavati University.

📚 Overview

This repository serves as a resource for practicing and revising core Java concepts, OOP principles, and exception handling, along with some real-world problem-solving using Java. Each program is designed to help students solidify their understanding of Java programming.

📝 List of Programs

🧑‍💻 Basic Programs

Print "Hello World! This is my First Java Program."
Perform arithmetic operations (+, −, ×, ÷) on two numbers.
Find the greatest of three entered numbers.
Find the lowest of three entered numbers.
Check whether a number is odd or even.
Convert distance from KM to Miles and vice versa.
Convert temperature from Celsius to Fahrenheit and vice versa.
Print the Fibonacci sequence up to n terms.
Compare two floating-point numbers up to three decimal places.
Identify if the entered character is a vowel or consonant with error handling for invalid input.
Check if a year is a leap year.
Display the first 10 natural numbers.
Display the multiplication table for a given number.

🔢 Patterns

Print a triangle pattern with repeating numbers:
```
1
22
333
4444
```
Print a triangle pattern with incremented numbers:
```
1
2 3
4 5 6
7 8 9 10
```

👨‍🏫 Object-Oriented Programs

Add two numbers using class and object.
Create a Student class with marks for 3 subjects, calculate average.
Implement single inheritance using Person and Employee classes.
Create a class hierarchy with a base class Shape, and derived classes Circle, Rectangle, and Triangle. Implement area() and perimeter() methods.
Develop a simple online shopping system using inheritance and polymorphism.
Implement BankAccount, with subclasses SavingsAccount and CheckingAccount, demonstrating method overriding.

📦 Package & Modular Java

Create a bookstore management system using Java packages:
- bookstore.book → Class: Book (title, author, ISBN, price)
- bookstore.inventory → Class: InventoryManager (add/update stock, retrieve book details)

🔁 Loops, Recursion & Numbers

Find factorial of a number.
Find sum of digits of a number.

🛑 Exception Handling

Handle ArithmeticException using try-catch.
Handle ArrayIndexOutOfBoundsException using try-catch.
Use throw keyword to create a custom exception.
Use throws keyword to handle a custom exception.

🧵 Multithreading

Demonstrate multithreading with count from 1 to 5 with a 1-second delay.

📦 Wrapper Classes & Built-in Methods

Perform autoboxing and unboxing.
Use 5 methods from the Math class.
Use 5 methods from the String class.
Use 5 methods from the StringBuffer class.

📁 Folder Structure

JavaProgramsSem4/
├── Program01_HelloWorld.java
├── Program02_ArithmeticOperations.java
├── ...
├── bookstore/
│ ├── book/
│ │ └── Book.java
│ └── inventory/
│ └── InventoryManager.java
└── README.md
---
## 🤝 Contributing
Contributions are welcome! If you’d like to improve a program, fix a bug, or add a new Java exercise, feel free to:
1. Fork the repository
2. Create a new branch (`git checkout -b feature-name`)
3. Commit your changes (`git commit -m 'Add new feature'`)
4. Push to the branch (`git push origin feature-name`)
5. Open a Pull Request
---
## 📜 License
This project is licensed under the [MIT License](LICENSE). Feel free to use, modify, and distribute the code with attribution.
---
## 🙌 Acknowledgments
- Java Documentation: [docs.oracle.com](https://docs.oracle.com/javase/8/docs/)
- Lab Instructors and Faculty at USCI, Karnavati University
- Open-source contributors and the Java community
---
## ✨ Author
**Yash Wadhvani** 3rd Year B.Tech CSE Student Unitedworld School of Computational Intelligence (USCI), Karnavati University 📫 [LinkedIn](https://www.linkedin.com/in/yashwadhvani/) • [GitHub](https://github.com/YashWadhvani)

JavaProgramsSem4

A repository containing all Java programs developed during Object Oriented Programming with Java Lab Sessions at Unitedworld School of Computational Intelligence (USCI), Karnavati University.

📚 Overview

This repository serves as a resource for practicing and revising core Java concepts, OOP principles, and exception handling, along with some real-world problem-solving using Java. Each program is designed to help students solidify their understanding of Java programming.

📝 List of Programs

🧑‍💻 Basic Programs

Print "Hello World! This is my First Java Program."
Perform arithmetic operations (+, −, ×, ÷) on two numbers.
Find the greatest of three entered numbers.
Find the lowest of three entered numbers.
Check whether a number is odd or even.
Convert distance from KM to Miles and vice versa.
Convert temperature from Celsius to Fahrenheit and vice versa.
Print the Fibonacci sequence up to n terms.
Compare two floating-point numbers up to three decimal places.
Identify if the entered character is a vowel or consonant with error handling for invalid input.
Check if a year is a leap year.
Display the first 10 natural numbers.
Display the multiplication table for a given number.

🔢 Patterns

Print a triangle pattern with repeating numbers:
```
1
22
333
4444
```
Print a triangle pattern with incremented numbers:
```
1
2 3
4 5 6
7 8 9 10
```

👨‍🏫 Object-Oriented Programs

Add two numbers using class and object.
Create a Student class with marks for 3 subjects, calculate average.
Implement single inheritance using Person and Employee classes.
Create a class hierarchy with a base class Shape, and derived classes Circle, Rectangle, and Triangle. Implement area() and perimeter() methods.
Develop a simple online shopping system using inheritance and polymorphism.
Implement BankAccount, with subclasses SavingsAccount and CheckingAccount, demonstrating method overriding.

📦 Package & Modular Java

Create a bookstore management system using Java packages:
- bookstore.book → Class: Book (title, author, ISBN, price)
- bookstore.inventory → Class: InventoryManager (add/update stock, retrieve book details)

🔁 Loops, Recursion & Numbers

Find factorial of a number.
Find sum of digits of a number.

🛑 Exception Handling

Handle ArithmeticException using try-catch.
Handle ArrayIndexOutOfBoundsException using try-catch.
Use throw keyword to create a custom exception.
Use throws keyword to handle a custom exception.

🧵 Multithreading

Demonstrate multithreading with count from 1 to 5 with a 1-second delay.

📦 Wrapper Classes & Built-in Methods

Perform autoboxing and unboxing.
Use 5 methods from the Math class.
Use 5 methods from the String class.
Use 5 methods from the StringBuffer class.

📁 Folder Structure

JavaProgramsSem4/
├── Program01_HelloWorld.java
├── Program02_ArithmeticOperations.java
├── ...
├── bookstore/
│ ├── book/
│ │ └── Book.java
│ └── inventory/
│ └── InventoryManager.java
└── README.md
---
## 🤝 Contributing
Contributions are welcome! If you’d like to improve a program, fix a bug, or add a new Java exercise, feel free to:
1. Fork the repository
2. Create a new branch (`git checkout -b feature-name`)
3. Commit your changes (`git commit -m 'Add new feature'`)
4. Push to the branch (`git push origin feature-name`)
5. Open a Pull Request
---
## 📜 License
This project is licensed under the [MIT License](LICENSE). Feel free to use, modify, and distribute the code with attribution.
---
## 🙌 Acknowledgments
- Java Documentation: [docs.oracle.com](https://docs.oracle.com/javase/8/docs/)
- Lab Instructors and Faculty at USCI, Karnavati University
- Open-source contributors and the Java community
---
## ✨ Author
**Yash Wadhvani** 3rd Year B.Tech CSE Student Unitedworld School of Computational Intelligence (USCI), Karnavati University 📫 [LinkedIn](https://www.linkedin.com/in/yashwadhvani/) • [GitHub](https://github.com/YashWadhvani)

JavaProgramsSem4

A repository containing all Java programs developed during Object Oriented Programming with Java Lab Sessions at Unitedworld School of Computational Intelligence (USCI), Karnavati University.

📚 Overview

This repository serves as a resource for practicing and revising core Java concepts, OOP principles, and exception handling, along with some real-world problem-solving using Java. Each program is designed to help students solidify their understanding of Java programming.

📝 List of Programs

🧑‍💻 Basic Programs

Print "Hello World! This is my First Java Program."
Perform arithmetic operations (+, −, ×, ÷) on two numbers.
Find the greatest of three entered numbers.
Find the lowest of three entered numbers.
Check whether a number is odd or even.
Convert distance from KM to Miles and vice versa.
Convert temperature from Celsius to Fahrenheit and vice versa.
Print the Fibonacci sequence up to n terms.
Compare two floating-point numbers up to three decimal places.
Identify if the entered character is a vowel or consonant with error handling for invalid input.
Check if a year is a leap year.
Display the first 10 natural numbers.
Display the multiplication table for a given number.

🔢 Patterns

Print a triangle pattern with repeating numbers:
```
1
22
333
4444
```
Print a triangle pattern with incremented numbers:
```
1
2 3
4 5 6
7 8 9 10
```

👨‍🏫 Object-Oriented Programs

Add two numbers using class and object.
Create a Student class with marks for 3 subjects, calculate average.
Implement single inheritance using Person and Employee classes.
Create a class hierarchy with a base class Shape, and derived classes Circle, Rectangle, and Triangle. Implement area() and perimeter() methods.
Develop a simple online shopping system using inheritance and polymorphism.
Implement BankAccount, with subclasses SavingsAccount and CheckingAccount, demonstrating method overriding.

📦 Package & Modular Java

Create a bookstore management system using Java packages:
- bookstore.book → Class: Book (title, author, ISBN, price)
- bookstore.inventory → Class: InventoryManager (add/update stock, retrieve book details)

🔁 Loops, Recursion & Numbers

Find factorial of a number.
Find sum of digits of a number.

🛑 Exception Handling

Handle ArithmeticException using try-catch.
Handle ArrayIndexOutOfBoundsException using try-catch.
Use throw keyword to create a custom exception.
Use throws keyword to handle a custom exception.

🧵 Multithreading

Demonstrate multithreading with count from 1 to 5 with a 1-second delay.

📦 Wrapper Classes & Built-in Methods

Perform autoboxing and unboxing.
Use 5 methods from the Math class.
Use 5 methods from the String class.
Use 5 methods from the StringBuffer class.

📁 Folder Structure

JavaProgramsSem4/
├── Program01_HelloWorld.java
├── Program02_ArithmeticOperations.java
├── ...
├── bookstore/
│ ├── book/
│ │ └── Book.java
│ └── inventory/
│ └── InventoryManager.java
└── README.md
---
## 🤝 Contributing
Contributions are welcome! If you’d like to improve a program, fix a bug, or add a new Java exercise, feel free to:
1. Fork the repository
2. Create a new branch (`git checkout -b feature-name`)
3. Commit your changes (`git commit -m 'Add new feature'`)
4. Push to the branch (`git push origin feature-name`)
5. Open a Pull Request
---
## 📜 License
This project is licensed under the [MIT License](LICENSE). Feel free to use, modify, and distribute the code with attribution.
---
## 🙌 Acknowledgments
- Java Documentation: [docs.oracle.com](https://docs.oracle.com/javase/8/docs/)
- Lab Instructors and Faculty at USCI, Karnavati University
- Open-source contributors and the Java community
---
## ✨ Author
**Yash Wadhvani** 3rd Year B.Tech CSE Student Unitedworld School of Computational Intelligence (USCI), Karnavati University 📫 [LinkedIn](https://www.linkedin.com/in/yashwadhvani/) • [GitHub](https://github.com/YashWadhvani)

Name		Name	Last commit message	Last commit date
bookstore		bookstore
.gitattributes		.gitattributes
.gitignore		.gitignore
CODE_OF_CONDUCT.md		CODE_OF_CONDUCT.md
CONTRIBUTING.md		CONTRIBUTING.md
LICENSE		LICENSE
Program01_Hello.java		Program01_Hello.java
Program02_ArithmeticOperations.java		Program02_ArithmeticOperations.java
Program03_Greatest.java		Program03_Greatest.java
Program04_Lowest.java		Program04_Lowest.java
Program05_OddOrEven.java		Program05_OddOrEven.java
Program06_KMToMiles.java		Program06_KMToMiles.java
Program07_CelsiusToFahrenheit.java		Program07_CelsiusToFahrenheit.java
Program08_FibonacciSequence.java		Program08_FibonacciSequence.java
Program09_FloatingPoint.java		Program09_FloatingPoint.java
Program10_CharTest.java		Program10_CharTest.java
Program11_LeapYear.java		Program11_LeapYear.java
Program12_NaturalNumbers.java		Program12_NaturalNumbers.java
Program13_MultiplicationTable.java		Program13_MultiplicationTable.java
Program14_PatternA.java		Program14_PatternA.java
Program15_PatternB.java		Program15_PatternB.java
Program16_AdderClass.java		Program16_AdderClass.java
Program17_StudentClass.java		Program17_StudentClass.java
Program18_Person.java		Program18_Person.java
Program19_Shape.java		Program19_Shape.java
Program20_Product.java		Program20_Product.java
Program21_BankAccounts.java		Program21_BankAccounts.java
Program22_Bookstore.java		Program22_Bookstore.java
Program23_Factorial.java		Program23_Factorial.java
Program24_SumOfDigits.java		Program24_SumOfDigits.java
Program25_ArithmeticException.java		Program25_ArithmeticException.java
Program26_ArrayIndexOutOfBoundsException.java		Program26_ArrayIndexOutOfBoundsException.java
Program27_Throw.java		Program27_Throw.java
Program28_Throws.java		Program28_Throws.java
Program29_MultiThreading.java		Program29_MultiThreading.java
Program30_Wrapper.java		Program30_Wrapper.java
Program31_Math.java		Program31_Math.java
Program32_String.java		Program32_String.java
Program33_StringBuffer.java		Program33_StringBuffer.java
README.md		README.md
Test1.java		Test1.java
Test2.java		Test2.java
test.java		test.java
tryNew.java		tryNew.java

Name		Name	Last commit message	Last commit date
bookstore		bookstore
.gitattributes		.gitattributes
.gitignore		.gitignore
CODE_OF_CONDUCT.md		CODE_OF_CONDUCT.md
CONTRIBUTING.md		CONTRIBUTING.md
LICENSE		LICENSE
Program01_Hello.java		Program01_Hello.java
Program02_ArithmeticOperations.java		Program02_ArithmeticOperations.java
Program03_Greatest.java		Program03_Greatest.java
Program04_Lowest.java		Program04_Lowest.java
Program05_OddOrEven.java		Program05_OddOrEven.java
Program06_KMToMiles.java		Program06_KMToMiles.java
Program07_CelsiusToFahrenheit.java		Program07_CelsiusToFahrenheit.java
Program08_FibonacciSequence.java		Program08_FibonacciSequence.java
Program09_FloatingPoint.java		Program09_FloatingPoint.java
Program10_CharTest.java		Program10_CharTest.java
Program11_LeapYear.java		Program11_LeapYear.java
Program12_NaturalNumbers.java		Program12_NaturalNumbers.java
Program13_MultiplicationTable.java		Program13_MultiplicationTable.java
Program14_PatternA.java		Program14_PatternA.java
Program15_PatternB.java		Program15_PatternB.java
Program16_AdderClass.java		Program16_AdderClass.java
Program17_StudentClass.java		Program17_StudentClass.java
Program18_Person.java		Program18_Person.java
Program19_Shape.java		Program19_Shape.java
Program20_Product.java		Program20_Product.java
Program21_BankAccounts.java		Program21_BankAccounts.java
Program22_Bookstore.java		Program22_Bookstore.java
Program23_Factorial.java		Program23_Factorial.java
Program24_SumOfDigits.java		Program24_SumOfDigits.java
Program25_ArithmeticException.java		Program25_ArithmeticException.java
Program26_ArrayIndexOutOfBoundsException.java		Program26_ArrayIndexOutOfBoundsException.java
Program27_Throw.java		Program27_Throw.java
Program28_Throws.java		Program28_Throws.java
Program29_MultiThreading.java		Program29_MultiThreading.java
Program30_Wrapper.java		Program30_Wrapper.java
Program31_Math.java		Program31_Math.java
Program32_String.java		Program32_String.java
Program33_StringBuffer.java		Program33_StringBuffer.java
README.md		README.md
Test1.java		Test1.java
Test2.java		Test2.java
test.java		test.java
tryNew.java		tryNew.java

Name		Name	Last commit message	Last commit date
bookstore		bookstore
.gitattributes		.gitattributes
.gitignore		.gitignore
CODE_OF_CONDUCT.md		CODE_OF_CONDUCT.md
CONTRIBUTING.md		CONTRIBUTING.md
LICENSE		LICENSE
Program01_Hello.java		Program01_Hello.java
Program02_ArithmeticOperations.java		Program02_ArithmeticOperations.java
Program03_Greatest.java		Program03_Greatest.java
Program04_Lowest.java		Program04_Lowest.java
Program05_OddOrEven.java		Program05_OddOrEven.java
Program06_KMToMiles.java		Program06_KMToMiles.java
Program07_CelsiusToFahrenheit.java		Program07_CelsiusToFahrenheit.java
Program08_FibonacciSequence.java		Program08_FibonacciSequence.java
Program09_FloatingPoint.java		Program09_FloatingPoint.java
Program10_CharTest.java		Program10_CharTest.java
Program11_LeapYear.java		Program11_LeapYear.java
Program12_NaturalNumbers.java		Program12_NaturalNumbers.java
Program13_MultiplicationTable.java		Program13_MultiplicationTable.java
Program14_PatternA.java		Program14_PatternA.java
Program15_PatternB.java		Program15_PatternB.java
Program16_AdderClass.java		Program16_AdderClass.java
Program17_StudentClass.java		Program17_StudentClass.java
Program18_Person.java		Program18_Person.java
Program19_Shape.java		Program19_Shape.java
Program20_Product.java		Program20_Product.java
Program21_BankAccounts.java		Program21_BankAccounts.java
Program22_Bookstore.java		Program22_Bookstore.java
Program23_Factorial.java		Program23_Factorial.java
Program24_SumOfDigits.java		Program24_SumOfDigits.java
Program25_ArithmeticException.java		Program25_ArithmeticException.java
Program26_ArrayIndexOutOfBoundsException.java		Program26_ArrayIndexOutOfBoundsException.java
Program27_Throw.java		Program27_Throw.java
Program28_Throws.java		Program28_Throws.java
Program29_MultiThreading.java		Program29_MultiThreading.java
Program30_Wrapper.java		Program30_Wrapper.java
Program31_Math.java		Program31_Math.java
Program32_String.java		Program32_String.java
Program33_StringBuffer.java		Program33_StringBuffer.java
README.md		README.md
Test1.java		Test1.java
Test2.java		Test2.java
test.java		test.java
tryNew.java		tryNew.java

Name		Name	Last commit message	Last commit date
bookstore		bookstore
.gitattributes		.gitattributes
.gitignore		.gitignore
CODE_OF_CONDUCT.md		CODE_OF_CONDUCT.md
CONTRIBUTING.md		CONTRIBUTING.md
LICENSE		LICENSE
Program01_Hello.java		Program01_Hello.java
Program02_ArithmeticOperations.java		Program02_ArithmeticOperations.java
Program03_Greatest.java		Program03_Greatest.java
Program04_Lowest.java		Program04_Lowest.java
Program05_OddOrEven.java		Program05_OddOrEven.java
Program06_KMToMiles.java		Program06_KMToMiles.java
Program07_CelsiusToFahrenheit.java		Program07_CelsiusToFahrenheit.java
Program08_FibonacciSequence.java		Program08_FibonacciSequence.java
Program09_FloatingPoint.java		Program09_FloatingPoint.java
Program10_CharTest.java		Program10_CharTest.java
Program11_LeapYear.java		Program11_LeapYear.java
Program12_NaturalNumbers.java		Program12_NaturalNumbers.java
Program13_MultiplicationTable.java		Program13_MultiplicationTable.java
Program14_PatternA.java		Program14_PatternA.java
Program15_PatternB.java		Program15_PatternB.java
Program16_AdderClass.java		Program16_AdderClass.java
Program17_StudentClass.java		Program17_StudentClass.java
Program18_Person.java		Program18_Person.java
Program19_Shape.java		Program19_Shape.java
Program20_Product.java		Program20_Product.java
Program21_BankAccounts.java		Program21_BankAccounts.java
Program22_Bookstore.java		Program22_Bookstore.java
Program23_Factorial.java		Program23_Factorial.java
Program24_SumOfDigits.java		Program24_SumOfDigits.java
Program25_ArithmeticException.java		Program25_ArithmeticException.java
Program26_ArrayIndexOutOfBoundsException.java		Program26_ArrayIndexOutOfBoundsException.java
Program27_Throw.java		Program27_Throw.java
Program28_Throws.java		Program28_Throws.java
Program29_MultiThreading.java		Program29_MultiThreading.java
Program30_Wrapper.java		Program30_Wrapper.java
Program31_Math.java		Program31_Math.java
Program32_String.java		Program32_String.java
Program33_StringBuffer.java		Program33_StringBuffer.java
README.md		README.md
Test1.java		Test1.java
Test2.java		Test2.java
test.java		test.java
tryNew.java		tryNew.java

Name		Name	Last commit message	Last commit date
bookstore		bookstore
.gitattributes		.gitattributes
.gitignore		.gitignore
CODE_OF_CONDUCT.md		CODE_OF_CONDUCT.md
CONTRIBUTING.md		CONTRIBUTING.md
LICENSE		LICENSE
Program01_Hello.java		Program01_Hello.java
Program02_ArithmeticOperations.java		Program02_ArithmeticOperations.java
Program03_Greatest.java		Program03_Greatest.java
Program04_Lowest.java		Program04_Lowest.java
Program05_OddOrEven.java		Program05_OddOrEven.java
Program06_KMToMiles.java		Program06_KMToMiles.java
Program07_CelsiusToFahrenheit.java		Program07_CelsiusToFahrenheit.java
Program08_FibonacciSequence.java		Program08_FibonacciSequence.java
Program09_FloatingPoint.java		Program09_FloatingPoint.java
Program10_CharTest.java		Program10_CharTest.java
Program11_LeapYear.java		Program11_LeapYear.java
Program12_NaturalNumbers.java		Program12_NaturalNumbers.java
Program13_MultiplicationTable.java		Program13_MultiplicationTable.java
Program14_PatternA.java		Program14_PatternA.java
Program15_PatternB.java		Program15_PatternB.java
Program16_AdderClass.java		Program16_AdderClass.java
Program17_StudentClass.java		Program17_StudentClass.java
Program18_Person.java		Program18_Person.java
Program19_Shape.java		Program19_Shape.java
Program20_Product.java		Program20_Product.java
Program21_BankAccounts.java		Program21_BankAccounts.java
Program22_Bookstore.java		Program22_Bookstore.java
Program23_Factorial.java		Program23_Factorial.java
Program24_SumOfDigits.java		Program24_SumOfDigits.java
Program25_ArithmeticException.java		Program25_ArithmeticException.java
Program26_ArrayIndexOutOfBoundsException.java		Program26_ArrayIndexOutOfBoundsException.java
Program27_Throw.java		Program27_Throw.java
Program28_Throws.java		Program28_Throws.java
Program29_MultiThreading.java		Program29_MultiThreading.java
Program30_Wrapper.java		Program30_Wrapper.java
Program31_Math.java		Program31_Math.java
Program32_String.java		Program32_String.java
Program33_StringBuffer.java		Program33_StringBuffer.java
README.md		README.md
Test1.java		Test1.java
Test2.java		Test2.java
test.java		test.java
tryNew.java		tryNew.java

Latest commit

History

Folders and files

Repository files navigation

JavaProgramsSem4

📚 Overview

📝 List of Programs

🧑‍💻 Basic Programs

🔢 Patterns

👨‍🏫 Object-Oriented Programs

📦 Package & Modular Java

🔁 Loops, Recursion & Numbers

🛑 Exception Handling

🧵 Multithreading

📦 Wrapper Classes & Built-in Methods

📁 Folder Structure

About

Topics

Resources

Code of conduct

Contributing

Stars

Watchers

Forks

Releases

Packages

Contributors

Languages

Latest commit

History

Folders and files

Repository files navigation

JavaProgramsSem4

📚 Overview

📝 List of Programs

🧑‍💻 Basic Programs

🔢 Patterns

👨‍🏫 Object-Oriented Programs

📦 Package & Modular Java

🔁 Loops, Recursion & Numbers

🛑 Exception Handling

🧵 Multithreading

📦 Wrapper Classes & Built-in Methods

📁 Folder Structure

About

Topics

Resources

Code of conduct

Contributing

Stars

Watchers

Forks

Releases

Packages

Contributors

Languages

Latest commit

History

Folders and files

Repository files navigation

JavaProgramsSem4

📚 Overview

📝 List of Programs

🧑‍💻 Basic Programs

🔢 Patterns

👨‍🏫 Object-Oriented Programs

📦 Package & Modular Java

🔁 Loops, Recursion & Numbers

🛑 Exception Handling

🧵 Multithreading

📦 Wrapper Classes & Built-in Methods

📁 Folder Structure

About

Topics

Resources

Code of conduct

Contributing

Stars

Watchers

Forks