Web Reference: Jul 23, 2025 · Given an array, the task is to remove the duplicate elements from an array. The simplest method to remove duplicates from an array is using a Set, which automatically eliminates duplicates. This method can be used even if the array is not sorted. Aug 27, 2025 · You now have 4 different ways to remove duplicates from Java arrays, each optimized for different scenarios. The LinkedHashSet method handles 90% of real-world use cases. Given an integer array nums sorted in non-decreasing order, remove the duplicates in-place such that each unique element appears only once. The relative order of the elements should be kept the same.
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