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why not:
public native long hashCode(); instead of:
public native int hashCode(); for higher chance of achieving unique hash codes?
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An object stores its state in fields (variables in some programming languages) and exposes its behavior through methods (functions in some programming languages). Methods operate on an object's internal state and serve as the primary mechanism for object-to-object communication.
Objects are designed to share behaviors and they can take on more than one form. The program will determine which meaning or usage is necessary for each execution of that object from a parent class, reducing the need to duplicate code. A child class is then created, which extends the functionality of the parent class.
With OOP, instead of writing a program, you create classes. A class contains both data and functions. When you want to create something in memory, you create an object, which is an instance of that class. So, for example, you can declare a Customer class, which holds data and functions related to customers.
In object-oriented programming (OOP), objects are the things you think about first in designing a program and they are also the units of code that are eventually derived from the process.
Because the maximum length of an array is Integer.MAX_VALUE.
Since the prime use of hashCode() is to determine which slot to insert an object into in the backing array of a HashMap/Hashtable, a hashcode > Integer.MAX_VALUE would not be able to be stored in the array.
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