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I tried to print the value of a reference variable of a class(equals and hashcode not overriden) and i get a value like Classname@hexnumber.
I found out that the hex-number is nothing but the memory address of the object.
BUT,when i override the hashcode and equals,and then i create two equivalent objects,and print the reference variables,I get the same values,because they had same hashCodes,but when i tried to compare them using ==,they were not equal.
So,my question is,even if the reference variables show equal values when printed,why are they not '=='.Do the reference variables store somethong else and display something else?
When you print out the values, what's actually happening is that toString() is being used to convert to a String. You haven't overridden toString(), so it's using the version defined in Object.
And if you look up that definition in the Javadocs, you see:
The toString method for class Object returns a string consisting of the name of the class of which the object is an instance, the at-sign character `@', and the unsigned hexadecimal representation of the hash code of the object. In other words, this method returns a string equal to the value of: