how to check how many elements in a set java
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
/*
check a set size by set.size()
*/
public class MainClass {
public static void main(String[] a) {
String elements[] = { "A", "B", "C", "D", "E" };
Set set = new HashSet(Arrays.asList(elements));
System.out.println(set.size());
}
}Copyright © 2021 Codeinu
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