create new object in arraylist with attributes

Question

I am new to Java and I am starting to work with ArrayLists. What I am trying to do is create an ArrayList for students. Each student has differen

Answer 1

final List<Student> students = new ArrayList<Student>();
students.add(new Student("Somename", 1));

... and so on add more students

Answer 2

You instantiate a Student object by passing the appropriate values to the constructor.

Student s = new Student("Mr. Big", 31);

You place elements into an ArrayList (or List) by using the .add() operator.^*

List<Student> studentList = new ArrayList<Student>();
studentList.add(s);

You retrieve user input via the use of a Scanner bound to System.in.

Scanner scan = new Scanner(System.in);
System.out.println("What is the student's name?");
String name = scan.nextLine();
System.out.println("What is their ID?");
int id = scan.nextInt();

You repeat this with a loop. That portion shall be left as an exercise to the reader.

^{*: There are other options, but add() simply adds it to the end, which is typically what you want.}

Answer 3

What you need is something like the following:

import java.util.*;

class TestStudent
{
    public static void main(String args[])
    {
        List<Student> StudentList= new ArrayList<Student>();
        Student tempStudent = new Student();
        tempStudent.setName("Rey");
        tempStudent.setIdNum(619);
        StudentList.add(tempStudent);
        System.out.println(StudentList.get(0).getName()+", "+StudentList.get(0).getId());
    }
}

class Student
{
    private String fname;
    private int stId;

    public String getName()
    {
        return this.fname;
    }

    public int getId()
    {
        return this.stId;
    }

    public boolean setName(String name)
    {
        this.fname = name;
        return true;
    }

    public boolean setIdNum(int id)
    {
        this.stId = id;
        return true;
    }
}