博客
关于我
Day53.File类的实例化 -Java常用类、集合、IO#
阅读量:334 次
发布时间:2019-03-04

本文共 1184 字,大约阅读时间需要 3 分钟。

Java File????????Java??????????????????????File????????????????????File???????????

File???java.io???????????????????????????????????File?????????????????????????IO???

1. ??File??

File???????????????

  • ???????File(String filePath)
    ???????????????????File????????????????????????????????????????????
    • Windows???????\\
    • Unix????URL??????/

???

File file1 = new File("Hello.txt"); // ????File file2 = new File("D:\\Note\\src\\com\\he.txt"); // ????
  • ????????File(String parentPath, String childPath)
    ??????????????????????????????????
File file3 = new File("D:\\Note\\src", "com");
  • ????????File(File parent, String childPath)
    ??????File?????????????????????????
File file4 = new File(file3, "he.txt");

2. ????

???File?????????????

  • ??????????????File????????????????????

    ?IDEA???????????????Module????????????????????
    ?Eclipse??????????????????????????????

  • ????????????????D:\????????http://www.example.com????????????????

3. ?????

??????????????????

  • Windows????????\\
    ???D:\MyFolder\MyFile.java
  • Unix???????/
    ???/home/user/MyFolder/MyFile.java
  • URL???????????????URL?????????????/

????????Java??File?????????????????????????????????????????????

???????????????????????File??????????Java??????????

转载地址:http://cuoq.baihongyu.com/

你可能感兴趣的文章
operator new and delete
查看>>
operator new 与 operator delete
查看>>
operator() error
查看>>
OPPO K3在哪里打开USB调试模式的完美方法
查看>>
oppo后端16连问
查看>>
OPPO软件商店APP侵权投诉流程
查看>>
Optional用法与争议点
查看>>
Optional类:避免NullPointerException
查看>>
Optional讲解
查看>>
ORA-00923: 未找到要求的 FROM 关键字
查看>>
ORA-00932: inconsistent datatypes: expected - got NCLOB【ORA-00932: 数据类型不一致: 应为 -, 但却获得 NCLOB 】【解决办法】
查看>>
ORA-00942 表或视图不存在
查看>>
ORA-01034: ORACLE not available
查看>>
ORA-01152: 文件 1 没有从过旧的备份中还原
查看>>
ORA-01207:文件比控制文件更新 - 旧的控制文件
查看>>
ORA-01795: 列表中的最大表达式数为 1000
查看>>
ORA-06575: 程序包或函数 NO_VM_DROP_PROC 处于无效状态
查看>>
ORA-08102的错误
查看>>
ORA-12505, TNS:listener does not currently know of SID given in connect descriptor异常
查看>>
ORA-12514: TNS:listener does not currently know of service问题原因
查看>>