Skill Check 3

3rd and FINAL Skill Check: Student Management System

Problem:

Create a Student Management System that:

1. Uses ArrayList to store students.

2. Uses HashMap to store student grades.

3. Uses OOP (Student class) for student details.

4. Uses a constructor to initialize the Student class.

5. Uses loops to allow multiple student registrations.

6. Uses try-catch to handle invalid inputs.

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Sample Output:

1 - Register Student  
2 - Assign Grade  
3 - Display Student Details  
4 - Exit  
Enter your choice: 1  
Enter student name: Carla Lopez  
Enter age: 20  
Enter course: IT  
Student Registered Successfully!  

1 - Register Student  
2 - Assign Grade  
3 - Display Student Details  
4 - Exit  
Enter your choice: 2  
Enter student name: Carla Lopez  
Enter grade: 90  
Grade Assigned Successfully!  

1 - Register Student  
2 - Assign Grade  
3 - Display Student Details  
4 - Exit  
Enter your choice: 3  
Enter student name: Carla Lopez  
Name: Carla Lopez  
Age: 20  
Course: IT  
Grade: 90  

1 - Register Student  
2 - Assign Grade  
3 - Display Student Details  
4 - Exit  
Enter your choice: 4  
Exiting program.

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Concepts Used in Final Problem:

✅ ArrayList → Stores multiple students.
✅ HashMap → Stores student grades.
✅ OOP → Uses a Student class.
✅ Constructors → Initializes student objects.
✅ Loops → Allows multiple entries.
✅ Try-Catch → Handles invalid inputs.