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Java List collection how to remove null elements, I believe that many inexperienced people are helpless about this, this article summarizes the causes of the problem and solutions, through this article I hope you can solve this problem.

List collection removes null elements and processes collections using a for loop

Thinking:

This is done by traversing the set to be processed, extracting elements that are not empty and adding them to the new set.

public static List removeNull(List

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