hashmap 是先比较hashcode 还是 equals

hashmap 是先比较hashcode 还是 equals

* Returns a hash code value for the object. This method is
* supported for the benefit of hashtables such as those provided by
* java.util.Hashtable.
*

* The general contract of hashCode is:
*
* Whenever it is invoked on the same object more than once during
* an execution of a Java application, the hashCode method
* must consistently return the same integer, provided no information
* used in equals co