c# - Delegate using different methods of different classes -

using system;   delegate int numberchanger(int n);  namespace delegateappl  {    class testdelegate    {      static int num = 10;     public static int addnum(int p)      {       num += p;       return num;      }       public static int multnum(int q)     {       num *= q;      return num;     }   public static int getnum()   {      return num;   }    static void main(string[] args)   {      //create delegate instances      numberchanger nc1 = new numberchanger(addnum);      numberchanger nc2 = new numberchanger(multnum);       //calling methods using delegate objects      nc1(25);      console.writeline("value of num: {0}", getnum());      nc2(5);      console.writeline("value of num: {0}", getnum());      console.readkey();   } } 

in above code function called , calling function in same class.... can use both in seperate classes?

if possible please give example ......

surely can.

just put methods in separate class , create instance of access them:

class arithmetic {     int num = 10;     public int addnum(int p)     {         num += p;         return num;     }      public int multnum(int q)     {         num *= q;         return num;     } } 

now call methods:

class testdelegate {     public delegate int numberchanger(int n);      static void main(string[] args)     {         //create instance of class         arithmetic art = new arithmetic();          //create delegate instances         numberchanger nc1 = new numberchanger(art.addnum);  //call reference         numberchanger nc2 = new numberchanger(art.multnum); //call reference          //calling methods using delegate objects          //add         console.writeline("value of num: {0}", nc1(25)); //use directly because delegate returns value          //product         console.writeline("value of num: {0}", nc2(5)); //use directly because delegate returns value          console.readkey();     } } 

note: don't need getnum() method returning value every method , delegate returns well. have removed static everywhere because seems need it.