java program to create an ArrayList of class object and access the object.

import java.util.*;

class ArrayListObject
{
public static void main (String[] args) {
Student s1=new Student(101,"Brijesh",23);
Student s2=new Student(102,"Dikshit",24);
Student s3=new Student(103,"kumar",25);
//creating ArrayList of Student class
ArrayList<Student> alist=new ArrayList<Student>();
alist.add(s1); alist.add(s2);
alist.add(s3);
//getting iterator
Iterator itr=alist.iterator();
//traversing element of ArrayList
while(itr.hasNext())
{
Student st=(Student)itr.next();
System.out.println(st.rollno+" "+st.name+" "+st.age);
}
}
}
class Student
{
int rollno;
String name;
int age;
Student(int rollno,String name,int age)
{
this.rollno=rollno;
this.name=name;
this.age=age;
}
}