第6章 面向对象(高级篇)

interface ClassName {
    public String getClassName();
}
class Company implements ClassName {

    @Override
    public String getClassName() {
        return new Company().getClass().getName();
    }
    
}

public class CompanyTest {

    public static void main(String[] args) {
        ClassName cn = new Company();
        System.out.println(cn.getClassName());
    }

}