Question

在HelloWorldAnonymousClasses示例程序（from here）中：

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public class HelloWorldAnonymousClasses {

    interface HelloWorld {
        public void greet();
        public void greetSomeone(String someone);
    }

    public void sayHello() {

        class EnglishGreeting implements HelloWorld {
            String name = "world";
            public void greet() {
                greetSomeone("world");
            }
            public void greetSomeone(String someone) {
                name = someone;
                System.out.println("Hello " + name);
            }
        }

        HelloWorld englishGreeting = new EnglishGreeting();

        HelloWorld frenchGreeting = new HelloWorld() {
            String name = "tout le monde";
            public void greet() {
                greetSomeone("tout le monde");
            }
            public void greetSomeone(String someone) {
                name = someone;
                System.out.println("Salut " + name);
            }
        };

        HelloWorld spanishGreeting = new HelloWorld() {
            String name = "mundo";
            public void greet() {
                greetSomeone("mundo");
            }
            public void greetSomeone(String someone) {
                name = someone;
                System.out.println("Hola, " + name);
            }
        };
        englishGreeting.greet();
        frenchGreeting.greetSomeone("Fred");
        spanishGreeting.greet();
    }

    public static void main(String... args) {
        HelloWorldAnonymousClasses myApp =
            new HelloWorldAnonymousClasses();
        myApp.sayHello();
    }            
}

什么调用greet()对象的englishGreeting方法？我很困惑..

修改

感谢您的回复。我应该发现了！我试图解决另一个查询，即：

在示例程序中 https://gist.github.com/bernii/5697073

在代码中

this.wait.until(new ExpectedCondition<Boolean>() {
            public Boolean apply(WebDriver webDriver) {
                System.out.println("Searching ...");
                return webDriver.findElement(By.id("resultStats")) != null;
            }
});

什么调用匿名内部类中的apply（）方法？

修改

我现在在一个新问题中询问了我的第二个问题。

Answer 1

在ArtsGreeting类

之后调用englishGreeting对象的greet（）方法

englishGreeting.greet();

更新： apply-方法从

调用

WebDriverWait.until()

Answer 2

在下面显示的代码部分中，创建了三个HelloWorld接口实例：

    HelloWorld englishGreeting = new EnglishGreeting();         
    HelloWorld frenchGreeting = new HelloWorld() {
       //...
    };         
    HelloWorld spanishGreeting = new HelloWorld() {
       // ...
    };

这里有一些方法被调用：

    englishGreeting.greet();
    frenchGreeting.greetSomeone("Fred");
    spanishGreeting.greet();

使用匿名内部类创建法语和西班牙语版本。英语版本是从本地类声明（EnglishGreeting）创建的。注意：您没有经常看到本地类声明，这是一个可以解释的例子。

什么调用HelloWorldAnonymousClasses中的greet（）方法？

2 个答案: