How to add or update entries in an immutable Map in Scala

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In this post, we will look at a Scala program to add or update entries in a Map.

we can use “+” method on the map instance to add/update elements. If called this method with an existing key, the corresponding value gets updated. If called with new key, the entry gets added to the Map.

Let’s look at a simple program for demonstration:

Output:

Happy learning.

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