Home Discussion Discuss: Java example program to get the object's ID

  • hash codesRenny November 10, 2011 at 5:59 PM

    >> But each object has its own unique hash value Not true. In theory many different objects can have the same hash code.

  • get the objects id?Andrzej December 1, 2011 at 2:01 AM

    You say hash value can be treated as the id for an object. This is true only as long as the hashCode method is not overwriten. Try your program on the following class: class NoIdObject { public int hashCode() { return 0; } }

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