Question

Create a class named Student, where each Student consists of a student id (a number between 0 and 99999), grade level (1-12), and a full name. Include set and get methods for all fields. Save this as Student.java.

Then, write an application that declares a Student object and prompts the user for the three required pieces of information, one at a time. For student id, keep prompting until the user enters a valid number (0-99999). Likewise, keep prompting for a grade level until a valid input (1-12) is obtained. After the input data has been stored in the Student object, use the get methods to retrieve and output the data. Save the program as StudentDemo.java.

Answer 1

/////////////////////////////////////////////////////////////

class Student {

    private String name;
    private int id;
    private int gradeLevel;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public int getGradeLevel() {
        return gradeLevel;
    }

    public void setGradeLevel(int gradeLevel) {
        this.gradeLevel = gradeLevel;
    }
}

/////////////////////////////////////////////////////////////
import java.util.Scanner;
class StudentDemo {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.print("Enter full name of student: ");
        Student student = new Student();
        student.setName(in.nextLine());
        int id, grade;
        while (true) {
            System.out.print("Enter id(0-99999): ");
            id = in.nextInt();
            if (id >= 0 && id <= 99999) break;
            System.out.println("Invalid id. Try again!");
        }
        while (true) {
            System.out.print("Enter grade level(1-12): ");
            grade = in.nextInt();
            if (grade >= 1 && grade <= 12) break;
            System.out.println("Invalid grade level. Try again!");
        }
        student.setId(id);
        student.setGradeLevel(grade);

        System.out.println("Name: " + student.getName());
        System.out.println("Id: " + student.getId());
        System.out.println("Grade level: " + student.getGradeLevel());
        in.close();
    }
}