java-practice-2025-wecodee

Project NO:1 Bank Account Management (Java)

This is a simple Java program to demonstrate object-oriented programming (OOP) concepts like encapsulation and method overloading. It allows you to create a bank account, deposit money (both double and String formats), withdraw money, and check your balance.

🚀 Features

Create a bank account with an account number and initial balance

Deposit money using either:

deposit(double amount)

deposit(String amount)

Withdraw money from the account

Display the account balance and account number

📝 Code Structure

Main.java BankAccount.java

Main.java – contains the main() method to execute the program

BankAccount.java – contains the BankAccount class with fields and methods for deposit, withdraw, and account details

📊 Sample Output

AccountNumber: 1789654321 Deposited: $1000.0 Deposited: 7000 Balance: 9000.0 Balance: 8000.0

📝 Concepts Covered

Encapsulation – private fields with public getters/setters

Method Overloading – deposit method overloaded for double and String types

Basic I/O – System.out for output

Project NO:2 Bus Booking System (Java)

This is a console-based Java application that simulates a simple bus booking system. It allows users to view available buses, book tickets for a specific date, and ensures seat availability before confirming a booking.

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🚀 Features

• Display all available buses with details such as:

  • Bus number
  • AC availability
  • Seat capacity

• Book tickets for a specific bus on a chosen date

• Prevent overbooking by checking seat availability

• Handle multiple bookings efficiently

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📝 How It Works

1. The program initializes a list of buses with predefined capacity and AC details.
2. Users can view all buses and their details.
3. Users are prompted to enter their name, select a bus, and specify a travel date.
4. The system checks if seats are available on the chosen bus and date.
5. If seats are available, the booking is confirmed; otherwise, the user is informed to choose another date or bus.

📊 Sample Output

• Display list of buses with bus number, AC availability, and capacity
• Success or failure messages for booking attempts
• Updated seat availability for selected buses

📝 Concepts Covered

• Object-Oriented Programming (OOP)

  • Classes (Bus, Booking) *Encapsulation (private fields with public methods)

• ArrayList usage for dynamic storage of buses and bookings

• Date handling using SimpleDateFormat

• Method design for checking availability

Here’s a professional README.md for your University Management System project:

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Project 3: University Management System (Java)

This is a console-based Java application that simulates a simple university management system. It allows managing professors, students, and courses, enabling students to enroll in courses taught by professors.

🚀 Features

• Add and manage Professor details:
  • Name, Age, Email, Professor ID
  • Assign multiple courses to professors
• Add and manage Student details:
  • Name, Age, Email, Student ID
  • Enroll in multiple courses offered by professors
• View courses assigned to professors and enrolled by students
• Prevent over-enrollment of courses for both students and professors

📝 How It Works

1. The system prompts for professor details including name, age, email, and professor ID.

2. Each professor is assigned one or more courses with course name and course code.

3. The system prompts for student details including name, age, email, and student ID.

4. Students can choose courses from the list of courses offered by professors.

5. The program ensures:

   • A student cannot enroll in more courses than allowed (limit of 5).
   • A professor cannot assign more courses than allowed (limit of 5).

6. Students can view the courses they are enrolled in, and professors can view the courses they teach.

📊 Sample Output

• Professors are displayed along with their assigned courses
• Students can select professors and enroll in available courses
• Enrollment confirmation messages are displayed
• Lists of courses per student and per professor are viewable

📝 Concepts Covered

• Object-Oriented Programming (OOP):
  • Classes and Objects (Professor, Student, Course, Person)
  • Inheritance (Student and Professor extend Person)
  • Encapsulation (private fields with getters/setters)
• Arrays and Array Management for storing courses and enrollments
• User Input Handling using Scanner
• Basic Validation for course limits and enrollment