[Java] How to merge two arrays and remove duplicates?

Using stream & distinct() we can merge and remove duplicate items from arrays.
Following code shows how to do that

import java.util.Arrays;
import java.util.stream.Stream;

public class JavaArrays {
	public static void main(String[] args) {
		String[] arr1 = { "a", "b", "c" };
		String[] arr2 = { "c", "d", "e", "f" };
		
		
		String[] finalArry = Stream.of(arr1, arr2)
				.flatMap(Stream::of).distinct().toArray(String[]::new);

		System.out.println(Arrays.toString(finalArry));
	}
}

Output:

[a, b, c, d, e, f]

Try this code online: https://onecompiler.com/java/3xmthwpam