Array list

Question

How can I store large data in arrays?? Like I am writing a code for student grades management system..so how can I store info(name, id, age, grades, course enrolled) of student in array list?

Answer 1

Basically you need to create the student object
and then you add that object with all the attributes to your list like
List<Student> students = new ArrayList();
students.add(student1);

If you need to handle many records, reading the students from a file or a database would be the better solution than creating them one by one.

Answer 2

or
List<Student> students = new ArrayList<>();
if you dont like warnings

Answer 3

Class Students {

private String name;
Private int age;
private String grade;

public Students (String name,int age, String grade){

this.name=name;
this.age=age;
this.grade=grade;

}
//get and setters.

}

Main {

Students student0= new Students("Jack",19,"Higschool")
ArrayList <Students> Class= new ArrayList();

Class.add(student0)
}

// I am not a expert, hope it works for someone.