Vector: containsAll(Collection> c)
import java.util.Vector; public class Main { public static void main(String args[]) { Vector<String> v = new Vector<String>(); v.add("A"); v.add("B"); Vector<String> v2 = new Vector<String>(); v2.add("A"); v2.add("B"); v2.add("C"); boolean isContaining = v2.containsAll(v); System.out.println(isContaining); } }