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Define methods

Methods are subroutines that manipulate the data defined by the class and provide access to that data. Other parts of your program will interact with a class through its methods. The general form of a method is shown here: access ret-type name(parameter-list) {     // body of method } The access determines what other parts of a program can call the method. The ret-type specifies the type of data returned by the method. The parameter-list is a sequence of type and identifier pairs separated by commas. using System; using System.Collections.Generic; using System.Reflection; using System.Runtime.InteropServices; class Calculator {     public int Add(int x, int y)     {         return x + y;     } } public class MainClass {    public static void Main(){         Calculator calc = new Calculator();         int sum = calc.Add(3, 5);         Console.WriteLine("3 + 5 = {0}", sum);    } } 3 + 5 = 8