一旦初始化就覆盖一个类
下面的代码覆盖对象 GenObject 中的 navigationClick。除了扩展 GenObject 并在子类中实现方法重写之外，还有其他方法可以重写 navigationClick 吗？
是否有如下所示的构造的名称，在类初始化时会发生覆盖？
GenObject go= new GenObject(){
public boolean navigationClick(int status, int time)
{
Below code is overriding navigationClick in object GenObject. Is there any other way of overriding navigationClick other than extending GenObject and implementing a method override in sub - class ?
Is there a name for such a construct as below, where an override occurs when the class is initialised ?
GenObject go= new GenObject(){
public boolean navigationClick(int status, int time)
{
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不，为了重写方法，您始终必须创建一个子类。
示例代码中所做的称为 匿名类，但它实际上只是用于创建子类的快捷语法。在字节码级别，它是一个与其他类一样的类，并且它有自己的 .class 文件，名称类似于
ContainingClass$0.classNo, in order to override a method you always have to create a subclass.
What is done in your example code is called an anonymous class, but it's really just a shortcut syntax for creating a subclass. At the bytecode level, it's a class like any other, and it will have its own .class file named something like
ContainingClass$0.class您只能通过子类化来覆盖。您正在做的是创建一个
匿名< /a> 类。You can only override by subclassing. What you're doing is creating an
anonymousclass.