Here we can use this to reference instance variable in getter and setter
class Student { private int id; // An instance variable public void setId(int id) { this.id = id; } public int getId() { return this.id; } }
You can use the Student as the following code.
class Student { private int id; // An instance variable public void setId(int id) { this.id = id; }//from www.ja v a 2 s. c o m public int getId() { return this.id; } } public class Main { public static void main(String[] args) { Student s = new Student(); s.setId(1); System.out.println(s.getId()); } }