How to remove duplicates from ArrayList in java

Table of Contents

In this post, we will see how to remove duplicate elements from ArrayList in java.
There are many ways to do it. Some of them are:

  • Using iterative approach
  • Using HashSet (but does not maintain insertion order)
  • Using LinkedHashMap

Program:

When you run above program, you will get following output:
Please go through java interview programs for more such programs.

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