Java 中的匿名对象
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Anonymous Objects in Java
提问by pnkjshrm30
Java helps us creating anonymous object using
Java 帮助我们使用创建匿名对象
new class_name();
statement and calling the methods using association(.) operator like
语句并使用关联(。)运算符调用方法,如
new Emp().input();
How can I use it to invoke two methods simultaneously from an anonymous object like invoking both input()and show()together ?
我怎么能同时使用它来调用两种方法从诸如调用两个匿名对象input()和show()在一起?
回答by Zach
How about making a method:
如何制作一个方法:
public void inputThenShow() {
input();
show();
}
Then call with
然后用
new Emp().inputThenShow();
回答by Sebas
or
或者
public Emp show() {
// do the stuff
return this;
}
public Emp input() {
// do the stuff
return this;
}
Then call with
然后用
new Emp().show().input();
回答by njzk2
What you can also do, without modifying the Empclass, is create an anonymous class that extends your class to allow it to call both methods.
您还可以在不修改Emp类的情况下创建一个匿名类来扩展您的类以允许它调用这两种方法。
new Emp() {
public void doStuff() {
input();
show();
}
}.doStuff();
Which as a bonus gives you an anonymous instance of an anonymous class.
作为奖励,您可以使用匿名类的匿名实例。

