import java.util.*;

public class StudentDB
{
    private ArrayList<StudentRecord> studentDB = new ArrayList<StudentRecord>();
    private static Scanner in = new Scanner(System.in);
    
    public StudentDB()
    {
    }
    
    public void readAndAddRecord()
    {
        String first, last, name, major;
        double gpa;
        System.out.print("Enter a student record");
        System.out.println("(first, last, major, gpa)");
        first = in.next();
        last = in.next();
        name = String.format("%s %s", first, last);
        major = in.next();
        gpa = in.nextDouble();
        studentDB.add(new StudentRecord(name, major, gpa));
    }
    
    public void printCourse()
    {
        for(StudentRecord student : studentDB)
            student.printRecord();
    }
    
    public StudentRecord remove(int index)
    {
        return studentDB.remove(index);
    }
    
    public void add(int index, StudentRecord newStudent)
    {
        studentDB.add(index, newStudent);
    }
    
    public void set(int index, StudentRecord newStudent)
    {
        studentDB.set(index, newStudent);
    }
    
    public StudentRecord get(int index)
    {
        return studentDB.get(index);
    }
    
}