Student / StudentDriver – Building Objects

Spec Sheet – Student Class

File Name: Student.java
Class Name: Student
Type: Blueprint class (will be used to create Student objects)

1. Purpose

The Student class models a high school student with a name, grade level, and GPA. It provides methods to change the student’s data and display it. All methods have a void return type.

2. Instance Variables (Fields)

Name	Type	Description
name	String	Student’s name
gradeLevel	int	Student’s current grade level (9–12)
gpa	double	Student’s GPA (0.0–4.0)

3. Methods (All void)

Method 1 – setName(String n)

• Purpose: Set the student’s name.
• Parameter: n – the new name.
• Return Type: void

Method 2 – setGradeLevel(int grade)

• Purpose: Set the student’s grade level.
• Parameter: grade – the new grade level.
• Return Type: void

Method 3 – setGpa(double g)

• Purpose: Set the student’s GPA.
• Parameter: g – the new GPA.
• Return Type: void

Method 4 – printStudentInfo()

• Purpose: Print the student’s name, grade level, and GPA to the screen.
• Parameters: none.
• Return Type: void

Method 5 – promote()

• Purpose: Increase the student’s grade level by 1 and print a message.
• Parameters: none.
• Return Type: void

Method 6 – resetStudent()

• Purpose: Clear the student record (reset fields to default values) and print a message.
• Parameters: none.
• Return Type: void

Pseudocode – Student Class

CLASS Student

    // Fields
    DECLARE name AS String
    DECLARE gradeLevel AS int
    DECLARE gpa AS double

    METHOD setName(n AS String)
        SET name TO n
    END METHOD

    METHOD setGradeLevel(grade AS int)
        SET gradeLevel TO grade
    END METHOD

    METHOD setGpa(g AS double)
        SET gpa TO g
    END METHOD

    METHOD printStudentInfo()
        DISPLAY "Student Name: " + name
        DISPLAY "Grade Level: " + gradeLevel
        DISPLAY "GPA: " + gpa
    END METHOD

    METHOD promote()
        INCREASE gradeLevel BY 1
        DISPLAY name + " has been promoted to grade " + gradeLevel
    END METHOD

    METHOD resetStudent()
        SET name TO empty string
        SET gradeLevel TO 0
        SET gpa TO 0.0
        DISPLAY "Student record reset."
    END METHOD

END CLASS
    

Spec Sheet – StudentDriver Class

File Name: StudentDriver.java
Class Name: StudentDriver
Type: Driver / test class (has main method)

1. Purpose

The StudentDriver class tests the Student class. It creates (instantiates) one Student object and calls the methods to demonstrate instantiation and method calls.

2. Methods

public static void main(String[] args)

• Purpose: Program starting point.
• Actions:
  • Create one Student object.
  • Set its data (name, grade level, GPA).
  • Print the student info.
  • Promote the student.
  • Reset the student record.

Pseudocode – StudentDriver Class

CLASS StudentDriver

    METHOD main(args)

        // 1. Create (instantiate) a Student object
        DECLARE s1 AS Student
        SET s1 TO NEW Student object

        // 2. Set the student's data
        CALL s1.setName("Aiden")
        CALL s1.setGradeLevel(11)
        CALL s1.setGpa(3.75)

        // 3. Print student information
        CALL s1.printStudentInfo()

        // 4. Promote the student
        CALL s1.promote()

        // 5. Reset the student record
        CALL s1.resetStudent()

    END METHOD

END CLASS