test167.java~

来自「SCJP认证考试资料」· JAVA~ 代码 · 共 12 行

class Animal {
}
class Dog extends Animal {
}
public class Test139 {
    public void go() {
	ArrayList<Dog> aList = new ArrayList<Dog>();
	takeList(aList);
    }
    public void takeList(ArrayList list) {}
}