instanceoftest.java

《Java核心技术应用开发》电子工业出版社书籍源代码

package sample;

public class InstanceofTest {
    
    public static void main(String[] args) {
        Employee unknown = new Manager();
        Employee john = new Employee("john");
        System.out.println("unknown is instanceof manager: " + (unknown instanceof Manager));
        System.out.println("unknown is instanceof employee: " + (unknown instanceof Employee));
        System.out.println("john is instanceof manager: " + (john instanceof Manager));
        System.out.println("john is instanceof employee: " + (john instanceof Employee));
    }
    
}