接口中的 C# |继承
C# 允许用户将一个界面继承到另一个界面。当一个类实现继承的接口时，它必须提供接口继承链中定义的所有成员的实现。 要点:
- 如果一个类实现了一个接口，那么就需要实现该接口定义的所有方法，包括基本接口方法。否则，编译器会抛出一个错误。
- 如果派生接口和基接口都声明了同一个成员，则基接口成员名被派生接口成员名隐藏。
语法:
// declaring an interface
access_modifier interface interface_name
{
// Your code
}
// inheriting the interface
access_modifier interface interface_name : interface_name
{
// Your code
}
例 1:
c sharp . c sharp . c sharp . c sharp
// C# program to illustrate the concept
// of inheritance in interface
using System;
// declaring an interface
public interface A {
// method of interface
void mymethod1();
void mymethod2();
}
// The methods of interface A
// is inherited into interface B
public interface B : A {
// method of interface B
void mymethod3();
}
// Below class is inheriting
// only interface B
// This class must
// implement both interfaces
class Geeks : B
{
// implementing the method
// of interface A
public void mymethod1()
{
Console.WriteLine("Implement method 1");
}
// Implement the method
// of interface A
public void mymethod2()
{
Console.WriteLine("Implement method 2");
}
// Implement the method
// of interface B
public void mymethod3()
{
Console.WriteLine("Implement method 3");
}
}
// Driver Class
class GFG {
// Main method
static void Main(String []args)
{
// creating the object
// class of Geeks
Geeks obj = new Geeks();
// calling the method
// using object 'obj'
obj.mymethod1();
obj.mymethod2();
obj.mymethod3();
}
}
Output:
Implement method 1
Implement method 2
Implement method 3
例 2:
c sharp . c sharp . c sharp . c sharp
// C# program to illustrate the concept
// of inheritance in the interface
using System;
// declaring an interface
public interface Votes
{
// method of interface
void vote_no(int a);
}
// The methods of interface Votes
// is inherited into interface Details
public interface Details : Votes
{
// method of interface Details
void detailsofauthor(string n, int p);
}
// Below class is inheriting
// the interface Details
// This class must implement
// the methods of both interface
// i.e. Votes and Details
class TechinalScriptWriter : Details
{
// implementing the method
// of interface Votes
public void vote_no(int a)
{
Console.WriteLine("Total number of votes is: {0}", a);
}
// implementing the method
// of interface Details
public void detailsofauthor(string n, int p)
{
Console.WriteLine("Name of the author is: {0}", n);
Console.WriteLine("Total number of published" +
" article is: {0}", p);
}
}
// Driver Class
class GFG {
// Main method
static void Main()
{
// Creating the objects of
// TechinalScriptWriter class
TechinalScriptWriter obj = new TechinalScriptWriter();
// calling the methods by passing
// the required values
obj.vote_no(470045);
obj.detailsofauthor("Siya", 98);
}
}
Output:
Total number of votes is: 470045
Name of the author is: Siya
Total number of published article is: 98
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