import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
// import java.util.*;
public class Hello {
public static void main(String[] args) {
List<String> list = new ArrayList<String>();
list.add("hello");
list.add("World");
System.out.println(list);
list.set(1, "vinter");
System.out.println(list);
System.out.println(list.size());
list.remove(0);
System.out.println(list);
System.out.println(list.get(0));
System.out.println(list.contains("vinter"));
String[] strArray = list.toArray(new String[list.size()]);
System.out.println(strArray);
String[] aa = {"a","b","c"};
for(Object item: aa) {
System.out.println(item);
}
List li = Arrays.asList(aa);
System.out.println(li);
}
}
