How to print the directory hierarchy?
Following example shows how to print the hierarchy of a specified directory using file.getName() and file.listFiles() method of File class.
import java.io.File; import java.io.IOException; public class FileUtil { public static void main(String[] a)throws IOException{ showDir(1, new File("d:\\Java")); } static void showDir(int indent, File file) throws IOException { for (int i = 0; i < indent; i++) System.out.print('-'); System.out.println(file.getName()); if (file.isDirectory()) { File[] files = file.listFiles(); for (int i = 0; i < files.length; i++) showDir(indent + 4, files[i]); } } }
The above code sample will produce the following result.
-Java -----codes ---------string.txt ---------array.txt -----tutorial
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