标签:instanceof 类型转换 十一 Object System Student println out
public class Demo02 { public static void main(String[] args) { //Object>Person>Student //Object>Person>Teacher //Object>String Object object = new Student(); System.out.println(object instanceof Student); System.out.println(object instanceof Person); System.out.println(object instanceof Object); System.out.println(object instanceof Teacher); System.out.println(object instanceof String); System.out.println("======================="); Person person = new Student(); System.out.println(person instanceof Student); System.out.println(person instanceof Person); System.out.println(person instanceof Object); System.out.println(person instanceof Teacher); //System.out.println(person instanceof String);//编译报错 System.out.println("======================="); Student student = new Student(); System.out.println(student instanceof Student); System.out.println(student instanceof Person); System.out.println(student instanceof Object); //System.out.println(student instanceof Teacher);//编译报错 //System.out.println(person instanceof String);//编译报错 } }
标签:instanceof,类型转换,十一,Object,System,Student,println,out 来源: https://www.cnblogs.com/epiphany8/p/16265224.html
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