hashcode Archives - IT Nursery

Java, Programming

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Why use a prime number in hashCode?

I was just wondering why is that primes are used in a class’s hashCode() method? For example, when using Eclipse to generate my ...

June 2, 2022
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Programming, Python

IT Nursery

What’s a correct and good way to implement hash()?

What’s a correct and good way to implement __hash__()? I am talking about the function that returns a hashcode that is then used ...

May 28, 2022
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How does a Java HashMap handle different objects with the same hash code?

As per my understanding I think: It is perfectly legal for two objects to have the same hashcode. If two objects are equal ...

May 22, 2022
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How to get the unique ID of an object which overrides hashCode()?

When a class in Java doesn’t override hashCode(), printing an instance of this class gives a nice unique number. The Javadoc of Object ...

May 20, 2022
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Best implementation for hashCode method for a collection

How do we decide on the best implementation of hashCode() method for a collection (assuming that equals method has been overridden correctly) ? ...

May 15, 2022
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Why do I need to override the equals and hashCode methods in Java?

Recently I read through this Developer Works Document. The document is all about defining hashCode() and equals() effectively and correctly, however I am ...

May 4, 2022
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What issues should be considered when overriding equals and hashCode in Java?

This question’s answers are a community effort. Edit existing answers to improve this post. It is not currently accepting new answers or interactions. ...

April 29, 2022
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How to determine equality for two JavaScript objects?

A strict equality operator will tell you if two object types are equal. However, is there a way to tell if two objects ...

April 19, 2022
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How can I generate an MD5 hash in Java?

Is there any method to generate MD5 hash of a string in Java? 33 s 33

April 15, 2022
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What is the best algorithm for overriding GetHashCode?

In .NET, the GetHashCode method is used in a lot of places throughout the .NET base class libraries. Implementing it properly is especially ...

April 12, 2022
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