当您在子类中重新定义具有相同签名的方法时，会发生方法覆盖.

Method overriding happens when you redefine a method with the same signature in a sublcass.

所以这里你覆盖了 hashCode()，而不是 toString()

So here you are overriding hashCode(), not toString()

@Override 注释是可选的(但这是一件非常好的事情)，并表明它应该被覆盖.如果您拼错了某些内容或输入了错误类型的参数，编译器会警告您.

The @Override annotation is optional (but a very good thing) and indicates that this is expected to be overriding. If you misspell something or have a wrongly-typed parameter, the compiler will warn you.

所以是的，第二个语句是正确的(在这种情况下，超类是 java.lang.Object)

So yes, the 2nd statement is true (and the superclass in this case is java.lang.Object)