WRITE A PROGRAM IN JAVA

import java.util.*;
class Student{
    int id;
    String name;
    int age;
    String department;
    String course;
    String grade;
    double gpa;

    Student(int id, String name,int age,String department,String course,String grade,double gpa){
        this.id=id;
        this.name=name;
        this.age=age;
        this.department=department;
        this.course=course;
        this.grade=grade;
        this.gpa=gpa;
    }
    public int getId(){
        return id;
    }
    public String getName(){
        return name;
    }
    public int getAge(){
        return age;
    }
    public String getDepartment(){
        return department;
    }
    public String getCourse(){
        return course;
    }
    public String getGrade(){
        return grade;
    }
    public double getGpa(){
        return gpa;
    }
}
public class CalculateGPA{
    public static void main(String[] args){
        Scanner input=new Scanner(System.in);
        ArrayList<Student> list=new ArrayList<Student>();
        double gpa=0;
        for(int i=0;i<5;i++){
            System.out.print("Enter id: ");
            int id=input.nextInt();
            System.out.print("Enter Name: ");
            String name=input.next();
            System.out.print("Enter Age: ");
            int age=input.nextInt();
            System.out.print("Enter Department: ");
            String department=input.next();
            System.out.print("Enter course: ");
            String course=input.next();
            System.out.print("Enter grade: ");
            String grade=input.next();
            if(grade.equals("A")||grade.equals("a")){
            gpa=4;
            }
            else if(grade.equals("B")||grade.equals("b")){
            gpa=3;
            }
            else if(grade.equals("C")||grade.equals("c")){
            gpa=2;
            }
            else if(grade.equals("D")||grade.equals("d")){
            gpa=1;
            }
            else if(grade.equals("F")||grade.equals("f")){
            gpa=0;
            }
            list.add(new Student(id,name,age,department,course,grade,gpa));
        }
        for(Student s: list){
            System.out.println(s.getId()+"\t"+s.getName()+"\t"+s.getAge()+"\t"+s.getDepartment()+"\t"+s.getCourse()+"\t"+s.getGpa());
     }
    }
   }