笔记20200427:javadoc文档、Scanner、顺序结构、选择结构、循环结构
9.JavaDoc生成文档
用处:javadoc命令是用来生成自己API文档的。
练习:IntelliJIDEA生成JavaDoc
第二部分:流程控制
1.用户交互Scanner
![](https://img2020.cnblogs.com/blog/1477439/202004/1477439-20200429001416021-451701986.jpg)
![](https://img2020.cnblogs.com/blog/1477439/202004/1477439-20200429001416580-239416125.png)
![](https://img2020.cnblogs.com/blog/1477439/202004/1477439-20200429001416913-417571757.jpg)
2.顺序结构
![](https://img2020.cnblogs.com/blog/1477439/202004/1477439-20200429001417274-88658340.jpg)
3.选择结构:
①if
②switch
![](https://img2020.cnblogs.com/blog/1477439/202004/1477439-20200429001417702-1069119810.jpg)
4.循环结构
①while
![](https://img2020.cnblogs.com/blog/1477439/202004/1477439-20200429001418082-1210524067.jpg)
![](https://img2020.cnblogs.com/blog/1477439/202004/1477439-20200429001418440-2122079901.png)
②do-while
![](https://img2020.cnblogs.com/blog/1477439/202004/1477439-20200429001418815-738430279.jpg)
![](https://img2020.cnblogs.com/blog/1477439/202004/1477439-20200429001419201-1995253159.png)
③for
![](https://img2020.cnblogs.com/blog/1477439/202004/1477439-20200429001419705-342016934.jpg)
死循环的写法如下:
![](https://img2020.cnblogs.com/blog/1477439/202004/1477439-20200429001420041-322023265.jpg)
![](https://img2020.cnblogs.com/blog/1477439/202004/1477439-20200429001420435-1907196002.jpg)
![](https://img2020.cnblogs.com/blog/1477439/202004/1477439-20200429001420799-783469578.png)
5.break&continue
![](https://img2020.cnblogs.com/blog/1477439/202004/1477439-20200429001421309-1036620573.jpg)
6.练习
![](https://img2020.cnblogs.com/blog/1477439/202004/1477439-20200429001421747-303796508.png)