import java.util.*;

public class Ex00RemoveAll {

	public static void removeAll1(ArrayList<String> list) {
		for (int i = list.size()-1; i >= 0; i--) {
			list.remove(i);
		}
	}

	public static void removeAll2(ArrayList<String> list) {
		for (int i = 0; i < list.size(); i++) {
			list.remove(i);
			i--; // index always stays at 0 !
		}
	}

	public static void removeAll3(ArrayList<String> list) {
		while (list.size() > 0) {
			list.remove(0);
		}
	}

	public static void main(String[] args) {
		String[] strs = { "1", "2", "3", "4", "5", "6", "7", "8", "9", "10" }; 
		ArrayList<String> list = new ArrayList<String>(
				Arrays.asList(strs)
				);
		System.out.println(list.toString());
		removeAll3(list);
		System.out.println(list.toString());
	}

}