/** * Using the Student class - version 1 */ public class UseStudent { public static void main(String[] args) { Student s1=new Student(); Student s2=new Student("Harry","Jones",12345); System.out.println(s1); System.out.println(s2); System.out.println("Count is "+Student.getCount()); System.out.println("First name of student s1 is "+s1.getFirst()); s1.changeFirst("Susan"); System.out.println(s1); } }