COLORPOINT SHORTHAIR 重点色短毛猫 ; 色点短毛猫
In his example, Bloch creates two classes - a Point and a ColorPoint - and tries to create an equals method that works correctly for both.
在此示例中，Bloch创建了两个类：Point和ColorPoint，并试图创建一个equals方法来适用于这两个类。
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