test67.java

来自「SCJP认证考试资料」· Java 代码 · 共 17 行

class SuperBase{
}
class Base extends SuperBase {
}
class Derived extends Base {
}
public class Test67 {
    public static void main(String[] args) {
	SuperBase[] s1 = new Base[2];
	SuperBase[] s2 = new Derived[1]{new Derived()};
	Base[] b1 = new Derived[0];
	Derived[] d1 = (Derived[])s2;
	Base[] b3 = d1;
	s1 = b1;
    }
}