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Java Object equals() 方法 Java Object 类 Object equals() 方法用于比较两个对象是否相等。 equals() 方法比较两个对象，是判断两个对象引用指向的是同一个对象，即它只是检查两个对象是否指向内存中的同一个地址。 注意：如果子类重写了 equals() 方法，就需要重写 hashCode() 方法，比如 String 类就重写了 equals ...
你看，Object 类的 .equals() 方法默认采用的是“==”操作符进行比较。 假如子类没有重写该方法的话，那么“==”操作符和 .equals() 方法的功效就完全一样——比较两个对象的内存地址是否相等。. 但实际情况中，有不少类重写了 .equals() 方法，因为比较内存地址的要求比较严格，不太符合现实中所有的 ...
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12 de jul. de 2021 · 1. String class overrides the default implementation of the equals () method of the Object class. The equals method code that you have provided is not from String class but from the Object class, which is overridden be the String class implementation which checks if the contents of the two objects are same or not. answered Apr 18, 2013 at 17:19.
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