importjava.io.File;publicclassCreatePathExample{publicstaticvoidmain(String[]args){Stringpath="C:/example/newPath";Filefile=newFile(path);booleancreated=file.mkdir();if(created){System.out.println("Path created successfully!");}else{System.out.println("Failed to create path!");}}} 1. 2. ...
importjava.io.File;publicclassPathCreation{publicstaticvoidmain(String[]args){Stringpath="/path/to/directory";Filefile=newFile(path);if(!file.exists()){booleancreated=file.mkdirs();if(created){System.out.println("Path created successfully");}else{System.out.println("Failed to create path");}...
Java中SPI机制主要思想是将装配的控制权移到程序之外,在模块化设计中这个机制尤其重要,其核心思想就是解耦。 当服务的提供者提供了一种接口的实现之后,需要在classpath下的META-INF/services/目录里创建一个以服务接口命名的文件,这个文件里的内容就是这个接口的具体的实现类。当其他的程序需要这个服务的时候,就可以...
*/publicclassTool{publicstaticStringgenerateString(int length){if(length<1)length=6;String str="ABCDEFGHIJKLMNOPQRSTUVWXYZ";String genStr="";for(int index=0;index<length;index++){genStr=genStr+str.charAt((int)((Math.random()*100)%26));}returngenStr;}} 5、定义常量类Constants 这个类中主...
if not file_path.is_file(): file_path.write_text("Hello, World!") else: print(f"The file {file_path} already exists.") Explanation: Path('example.txt') creates a Path object for example.txt. file_path.is_file() checks if the file already exists. file_path.write_text("Hello, Wo...
通过FilePath获取文件名 getFileNameFromUri(uri: Uri?) 通过Uri获取文件名 createFile(filePath: String?, fileName: String?, overwrite: Boolean = false):File? 创建文件,同名文件创建多次会跳过已有创建新的文件,如:note.txt已存在,则再次创建会生成note(1).txt createDirectory(filePath: String?): Boolea...
if(Files.notExists(path)){System.out.println("文件不存在");} 获取文件大小# publicstaticvoidmain(String[] args){StringfileName="C:\\rzk\\Users.txt";printFileSizeNIO(fileName);}publicstaticvoidprintFileSizeNIO(String fileName){Pathpath=Paths.get(fileName);try{Longbytes=Files.size(path);Sys...
*@create: 2023-11-07 15:06 *@description: 用户登录、注销、会话查询演示 *@Version1.0 **/@RestController@RequestMapping("/user/")@Slf4jpublicclassUserController{/** * 登录: http://localhost:8089/user/doLogin?username=xxkfz&password=123456 ...
pathif it consists solely of one name element that is empty. Accessing a file using anempty pathis equivalent to accessing the default directory of the file system.Pathdefines thegetFileName,getParent,getRoot, andsubpathmethods to access the path components or a subsequence of its name elements...
import java.io.IOException;publicclassCreateFileExample{publicstaticvoidmain(String[] args){try{ File file =newFile("c:\\newfile.txt");//创建文件使用createNewFile()方法if(file.createNewFile()){ System.out.println("File is created!");