Traversing only directories under dir

      
import java.io.File;

public class Main {
  public static void main(String[] argv) throws Exception {
  }

  // Process only directories under dir
  public static void visitAllDirs(File dir) {
    if (dir.isDirectory()) {
      System.out.println(dir);

      String[] children = dir.list();
      for (int i = 0; i < children.length; i++) {
        visitAllDirs(new File(dir, children[i]));
      }
    }
  }

}

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Traversing only directories under dir : Directory « File Input Output « Java

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