普通的Class可以实现多个接口吗？ [英] Can a normal Class implement multiple interfaces?

问题描述

我知道接口之间可以有多个继承，例如：

I know that multiple inheritances between Interfaces is possible, e.g.:

public interface C extends A,B {...} //Where A, B and C are Interfaces

但是有可能有一个常规的Class继承来自多个接口，如下所示：

But is it possible to have a regular Class inherit from multiple Interfaces like this:

public class A implements C,D {...} //Where A is a Class and C and D are interfaces

推荐答案

Java类只能扩展一个父类。不允许多重继承（ extends ）。但是，接口不是类，并且类可以实现多个接口。

A Java class can only extend one parent class. Multiple inheritance (extends) is not allowed. Interfaces are not classes, however, and a class can implement more than one interface.

父接口在逗号分隔列表中声明，在实现关键字后。

The parent interfaces are declared in a comma-separated list, after the implements keyword.

总之，是，有可能执行：

public class A implements C,D {...}

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