test111.java

来自「想考ＳＣＪＰ国际认证的必看这文档」· Java 代码 · 共 11 行

import java.util.*;
class Test111 {
    public void takeList(List<? extends String> list) {
	//	list.add("Foo");
	//list = new ArrayList<Object>();
	String s = list.get(0);
	List<String> o = new ArrayList();
    }
}