Quiz 1 - Java Fundamentals

Duration: 30 minutes
Total Points: 100 points

Instructions

Write a Java program that combines concepts from the first three labs. Your program should demonstrate proper use of:

• Basic I/O operations (Scanner)
• Variables and data types
• Control structures (if/else, loops, switch)
• String manipulation
• Mathematical operations
• Formatted output

Problem: Student Grade Management System (100 points)

Write a complete Java program called GradeManager.java that performs the following tasks:

Requirements:

1. Student Information Input (15 points)

   • Prompt the user to enter their first name and last name
   • Concatenate them into a full name with proper spacing
   • Display a welcome message using the full name

2. Grade Collection (20 points)

   • Ask the user to enter grades for 4 subjects: Math, Physics, Chemistry, and English
   • Use appropriate data types (integers are acceptable for grades)
   • Validate that each grade is between 0 and 100 (inclusive)
   • If an invalid grade is entered, display “Invalid grade” and ask for re-entry

3. Statistical Calculations (25 points)

   • Calculate the total of all grades
   • Calculate the average grade (display with 2 decimal places)
   • Find the highest grade among the 4 subjects
   • Find the lowest grade among the 4 subjects

4. Grade Classification (20 points)

   • Use a series of if/else statements to determine the letter grade based on the average:
     • A: 90-100
     • B: 80-89
     • C: 70-79
     • D: 60-69
     • F: Below 60

5. Subject Performance Analysis (10 points)

   • Use a switch statement to identify which subject had the highest grade
   • Display the name of that subject

6. Formatted Output (10 points)

   • Display all results using proper formatting:
     • Student name
     • Individual grades for each subject
     • Total, average, highest, and lowest grades
     • Letter grade
     • Best performing subject
   • Use printf for numerical formatting where appropriate

Sample Output:

Enter your first name: John
Enter your last name: Smith
Welcome John Smith!

Enter Math grade (0-100): 85
Enter Physics grade (0-100): 92
Enter Chemistry grade (0-100): 78
Enter English grade (0-100): 88

=== GRADE REPORT ===
Student: John Smith
Math: 85
Physics: 92
Chemistry: 78
English: 88

Total: 343
Average: 85.75
Highest: 92
Lowest: 78
Letter Grade: B
Best Subject: Physics

Grading Criteria:

• Syntax and Compilation (10 points): Program compiles without errors
• Functionality (60 points): All requirements implemented correctly
• Code Quality (20 points): Proper variable names, comments, and code organization
• Input/Output (10 points): Proper user interaction and formatted output

Additional Notes:

• Remember to import necessary classes (e.g., java.util.Scanner)
• Close the Scanner object when done
• Handle edge cases (e.g., all grades are equal)
• Use meaningful variable names
• Your code should be well-structured and readable

Time Management Tip: Spend about 5 minutes planning your solution, 20 minutes implementing, and 5 minutes testing and reviewing your code.

Good luck!