继承类的方法

本是古典何须时尚 2024-03-16 14:41 49阅读 0赞

**1** **问题**

定义一个父类，用子类去继承父类所拥有的方法、定义属性，然后使用测试文件实现子类输出父类的方法信息，属性等。

**2** **方法**

2.1 定义一个名为Person的父类：

![35d9ea5950f818444bacfed34f5391dd.png][]

2.2 定义一个名为Student的子类，并令其继承父类：

![4de2384b784680e28bf143637d5901c7.png][]

2.3 定义父类的属性、方法：

![3d75f954bf80add92b7714fb7387cb0c.png][]

2.4定义子类的属性，以及输出父类的属性：

![8950ce497938f05272885900bdbca3e5.png][]

2.5利用实例化一个类来输出：

![f762976c4da8ae05ee2ecce7d2001dcc.png][]

<table> 
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 <td>一：package zuoyeshiyan1; public class Person{ &nbsp; &nbsp;String name; &nbsp; &nbsp;int age; &nbsp; &nbsp;String numble; &nbsp; &nbsp;void fanhui(){ &nbsp; &nbsp;} &nbsp; &nbsp;Person(){ &nbsp; &nbsp;} } 二：package zuoyeshiyan1; public class Student extends Person{ &nbsp; &nbsp;int snumble; &nbsp; &nbsp;String school; &nbsp; &nbsp;void fanhui(){ &nbsp; &nbsp; &nbsp; &nbsp;System.out.println("姓名：" + name); &nbsp; &nbsp; &nbsp; &nbsp;System.out.println("年龄：" + age); &nbsp; &nbsp; &nbsp; &nbsp;System.out.println("身份证号：" + numble); &nbsp; &nbsp; &nbsp; &nbsp;System.out.println("学号：" + snumble); &nbsp; &nbsp; &nbsp; &nbsp;System.out.println("学校：" + school); &nbsp; &nbsp;} &nbsp; &nbsp;Student(String name,int age,String numble,int snumble, String school){ &nbsp; &nbsp; &nbsp; &nbsp;this.name = name; &nbsp; &nbsp; &nbsp; &nbsp;this.age = age; &nbsp; &nbsp; &nbsp; &nbsp;this.numble = numble; &nbsp; &nbsp; &nbsp; &nbsp;this.snumble = snumble; &nbsp; &nbsp; &nbsp; &nbsp;this.school = school; &nbsp; &nbsp;} } 三：package zuoyeshiyan1; public class text5 { &nbsp; &nbsp;public static void main(String[] args) { &nbsp; &nbsp; &nbsp; &nbsp;Student lisi = new Student("李四",18,"165465465",54654,"四川旅游学院"); &nbsp; &nbsp; &nbsp; &nbsp;lisi.fanhui(); &nbsp; &nbsp;} }</td> 
 </tr> 
 </tbody> 
</table>

**3** **结语**

针对于继承类以及类中的方法和属性，首先应该创建父类和子类的继承，然后是定义类属性和方法，最后输出返回它的内容。单单从目前来继承类属于比较基础的方法，之后还会在此基础上实现更多延伸，例如分块利用，比所有代码写在一起更加方便，整洁。

[35d9ea5950f818444bacfed34f5391dd.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/16/f8564b57817949fca1dd938bbb534b62.png
[4de2384b784680e28bf143637d5901c7.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/16/e80aa490b468473f9d1f0b05e3e2549a.png
[3d75f954bf80add92b7714fb7387cb0c.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/16/8b77efc048604b5fa5aac1faf5d68258.png
[8950ce497938f05272885900bdbca3e5.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/16/4a34196738fb4fa485ece5bbbbee84ee.png
[f762976c4da8ae05ee2ecce7d2001dcc.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/16/395ef582a09e447e844468b458f2dbe5.png