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Posez votre questionpackage com.gds.eraseAllInAFolder; import java.io.File; public class Start { public static void main(String[] args) { System.out.println(deleteDir(new File("c:\\az"))); new File("c:\\az").mkdir(); } public static boolean deleteDir(File dir) { if (dir.isDirectory()) { String[] children = dir.list(); for (int i = 0; i < children.length; i++){ boolean success = deleteDir(new File(dir, children[i])); if (!success) return false; } } // The directory is now empty so delete it return dir.delete(); } }