一个可观察的类可以被构造为单例吗？ [英] Can an observable class be constructed as a singleton?

问题描述

我使用Observer模式在Java中编写程序（借助Java API）。如果一些可观察者有多个实例，程序可能会崩溃。我应该把它们实现为单身吗？是推荐吗

解决方案

我以前做过，没有任何问题，正是因为我使用了单身人士。
模式是使用它。

I'm making a program in Java with the Observer pattern (with the help of the Java API). If some of the observables had more than one instance, the program could crash. Should I implement them as singleton? Is it recommended?

解决方案

I did it before and didn't have any problems exactly because I used a singleton. The pattern is there to use it.

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