test167.java

来自「想考ＳＣＪＰ国际认证的必看这文档」· Java 代码 · 共 13 行

import java.util.*;
class Animal {
}
class Dog extends Animal {
}
public class Test167 {
    public void go() {
	ArrayList<Dog> aList = new ArrayList<Dog>();
	takeList(aList);
    }
    public void takeList(ArrayList<Object> list) {}
}