🚀 go-pugleaf

As much as is reasonably practical, the hashCode method defined by class 
Object does return distinct integers for distinct objects. (This is 
typically implemented by converting the internal address of the object into 
an integer, but this implementation technique is not required by the JavaTM 
programming language.) 

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: ��Object��Ϊ��,toString()����ô�����:
:     public String toString()
:     {
:         return getClass().getName() + "@" + Integer.toHexString(hashCode());
:     }
: �ٷ��ĵ�����hashCode()���������:
: 1.Whenever it is invoked on the same object more than once during an execu
: tion of a Java application, the hashCode method must consistently return
:  the same integer, provided no information used in equals comparisons on
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