Mega Code Archive
To find out how many elements are in a set, use the size() method
<![CDATA[
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
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());
}
}
5
]]>