Introduction - If you have any usage issues, please Google them yourself
A common file operations class FileUtil.java Java source code, class all the methods are static methods need to generate instances of this class, the Java class file operations are mainly modified the file last access time to determine whether the specified file exist, create the specified directory, empty files in the specified directory, delete the specified directory and all contents, list all the contents of the directory, including subdirectories, add the contents of the directory to the list, returns the file s URL address, to get the file name from the file path, the path of DOS/Windows format into the path UNIX/Linux format to get the file type and file name, to get the position after the first path separator specified location in the file path, file type the name of the part removed, get a relative path, check the existence of a given directory, read the contents of the file, get the picture file extensions, calculate the number of images, etc.