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Add Article 4 for Effective Java #5
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yanglbme
yanglbme
requested changes
Jul 1, 2019
docs/effective-java.md
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如上,由于显示的构造器是私有的,则不会在类的外部被实例化。 AssertionError 不是必须的,但是这样写,可以避免在类的内部调用构造器。它保证该类在任何情况下都不会被实例化。
`注意`这种用法也有副作用,它使得一个类不能被子类化。因为所有的构造器都必须显式或隐式地调用超类(superclass)构造器,在上面这种情况下,子类就没有可访问的超类构造器去调用了。
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中文词建议用中文(加粗)的方式,英文词才用 English
Suggested change
`注意`这种用法也有副作用,它使得一个类不能被子类化。因为所有的构造器都必须显式或隐式地调用超类(superclass)构造器,在上面这种情况下,子类就没有可访问的超类构造器去调用了。
**注意**这种用法也有副作用,它使得一个类不能被子类化。因为所有的构造器都必须显式或隐式地调用超类(superclass)构造器,在上面这种情况下,子类就没有可访问的超类构造器去调用了。
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ok
yanglbme
yanglbme
approved these changes
Jul 1, 2019
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Add Article 4 for Effective Java