The java.io.File class provides ways to access file and directory information. It also allows file-level operations like rename, delete and move.
Checkout the source here.
Checkout the source here.
/** |
* A program to list all files and directories in a given directory. |
* |
* @author megha birmiwal |
*/ |
public class DirectoryLister { |
public void listDirectories(String filepath) { |
File topDir = new File(filepath); |
if (!topDir.exists()) { |
System.out.println("Directory does not exist: " + filepath); |
return; |
} |
if (!topDir.isDirectory()) { |
System.out.println("Not a directory: " + filepath); |
return; |
} |
File[] files = topDir.listFiles(); |
for (File file : files) { |
if (file.isHidden()) { |
// do not show hidden files |
continue; |
} |
if (file.isDirectory()) { |
System.out.println(file.getName() + " - D"); |
} else { |
System.out.println(file.getName() + " - " + file.length()); |
} |
// You can use the File APIs to play around with files, eg. rename or delete etc. |
// String name = file.getName(); |
// name = name.replace(".png", ".jpg"); |
// name = name + ".txt"; |
// file.renameTo(new File(name)); |
// file.delete(); |
} |
} |
public static void main(String[] args) { |
DirectoryLister lister = new DirectoryLister(); |
lister.listDirectories("/"); |
} |
} |