import java.util.ArrayList;
import java.util.Date;
import java.util.List;
public class Test {
public static void main(String[] args) {
List list = new ArrayList();
list.add(new String("a1"));
list.add(new Date());
list.add(new Integer(10));
list.remove(1); //删除下标为1的对象
System.out.print(list);
} //输出[a1, 10]
}