Methods | Java: Methods are behavior of class. Syntax: class class_name { void/int method_name(par1,par2,...,parn) { // statements... } } Here is the Code: import java.io.*; class Main { public static void main (String[] args) { A a = new A(); a.setX(3); System.out.println(a.getX()); } } class A { int x; void setX(int x) { this.x = x; } int getX() { return this.x; } } Output: 3 Here is the Video: