度小满校园招聘笔试题

下列代码哪行存在编译错误（ ）。 import java.util.*; public class Test{ public static void main(String[] args) { List<String> name = new ArrayList<String>(); List<Integer> age = new ArrayList<Integer>(); List<Number> number = new ArrayList<Number>(); /* line:0 */ name.add("icon"); age.add(18); number.add(314); getUperNumber(name); /* line:1 */ getUperNumber(age); /* line:2 */ getUperNumber(number); /* line:3 */ } public static void getUperNumber(List<? extends Number> data) { System.out.println("data :" + data.get(0)); } }