The basic rules of the JVM are still at work: derived classes of Person have to pass something up to the base class when constructed, regardless of what the language insists.
JVM的基本规则依然有效：Person的继承类在构造时向基类传递某些内容，而不管语言强调的是什么。
The basic rules of the JVM are still at work: derived classes of Person have to pass something up to the base class when constructed, regardless of what the language insists.
JVM的基本规则依然有效：Person的继承类在构造时向基类传递某些内容，而不管语言强调的是什么。
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