Enacapsulation Using Classes

Encapsulation in its simple terms refers to information hiding. In software development, encapsulating all the methods and classes into a module presents an interface which can be used for further development and can also be re-used. If any change requires, the change is restricted to a small subset of entire program thus saving time and cost of development.

Here am going to provide a small example of how classes are used in c# for encapsulation.

 class Program
    {
        public void method1()
        {
            Console.Write("method1 called ");
        }
        public void method2()
        { }
        static void Main(string[] args)
        {
            Class2 c2 = new Class2();
            c2.method3();
        }
    }
    class Class1
    {
        public Program prog()
        {
            return new Program();
        }
    }
    class Class2
    {
        public void method3()
        {
            Class1 c = new Class1();
            c.prog().method1();
        }
    }

In this small example, method3() of class2 is used to call method1() of  class Program through class1's method prog() which in turn returns a Program instance.