Help me to resolve this senario in oops.

Naresh Babu Gopavaram

12y1.2kVisual Basic .NET

Senario

Public Classs C1

{

public void Method1()

{

Console.WriteLine("Method1") ;

}

Public Classs C2

{

public void Method2()

{

Console.WriteLine("Method1") ;

}

Public Classs C3:C1,C2

{

Static Void Main()

{

C3 obj=new C3();

//here i want call Method1 and Method to

obj. Method1();

obj. Method2();

}

How can i achive the above thing with out using interfaces.

4 Replies

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Viky Tripathi12y ago
if u want to use method2(), u can use the concept of "Extention Method ", and extend method2() with c3, Sytax: make c2 static and its method2() also. after it , static method2(this C2 c2) { Console.Write("Method2()"); } and call it in c3. it easiely work....good luck
0
Vulpes12y ago
What you're trying to do, Naresh, is impossible because C# doesn't support multiple class inheritance.

C3 can only inherit from (at most) one class.

The usual way around it is to use inheritance for one class but 'containment' for the other(s):

using System;

public class C1
{
public void Method1()
{
Console.WriteLine("Method1") ;
}
}

public class C2
{
public void Method2()
{
Console.WriteLine("Method2") ;
}
}

public class C3:C1
{
private C2 _c2 = new C2();

public void Method2()
{
_c2.Method2();
}

static void Main()
{
C3 obj=new C3();
// here i want call Method1 and Method2
obj. Method1();
obj. Method2();
}
}
+1
Naresh Babu Gopavaram12y ago
this is stright way but i want to implement like as below only is it possible? Public Classs C3:C1,C2 { Static Void Main() { C3 obj=new C3(); //here i want call Method1 and Method to obj. Method1(); obj. Method2(); }
0
Ravi Kumar12y ago
try the fallowing

Public Classs C1
{
public void Method1()
{
Console.WriteLine("Method1") ;
}
}

Public Classs C2
{
public void Method2()
{
Console.WriteLine("Method1") ;
}
}

Public Classs C3
{
Static Void Main()
{
c1 obj1=new c1();
c2 obj2=new c2();
//here i want call Method1 and Method to
obj1. Method1();
obj2. Method2();

}

}
0