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Java - count duplicates in ArrayList

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Created by:
Evie-Grace-Noble
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In this article, we would like to show you how to count duplicated elements in ArrayList in Java.

Quick solution:

 

Practical example

Edit

In this example, we count the number of duplicated elements in letters ArrayList using Collections.frequency() method.

Output:

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  1. Java - count duplicated elements in ArrayList
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Java Collections - ArrayList

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