下面程序输出是?
public class Main { public static void main(String[] args) { ArrayList<String> l1 = new ArrayList<String>(); ArrayList<Integer> l2 = new ArrayList<Integer>(); l1.add("1"); l2.add(1); System.out.println(l1.get(0).getClass()); System.out.println(l2.get(0).getClass()); System.out.println(l1.getClass() == l2.getClass()); } }