Java: Given a path to a file, create the folders to it
Assuming you have a full path to a file you want to create but the folder to it might exist or not, you can use the following code in your program to check if the folder exists and if it doesn’t, create it.
//The file we want to create; final String logFileName = "./someFolder/anotherFolder/etc/myFile.txt"; //We find the last occurrence of the File.separator value, which will allow us to separate the path from the filename final int lastIndex = logFileName.lastIndexOf(File.separator); //The actual path we want to make sure it exists final String dirPath = logFileName.substring(0, lastIndex > 0 ? lastIndex : logFileName.length()); //We try to use the folder by assigning it to a File object final File theDir = new File(dirPath); //Make the check that the folder exists if (!theDir.exists()) { //If the folder does not exist, create it theDir.mkdirs(); } //Continue with execution