The Java filefilter example shows you how to filter directory using java FileFilter. I create a directoryFilter object that implements the FileFilter interface, then I implement the accept method. The method returns true if the passed parameter is a directory and false if it is not a directory.
More information, you saw how we could get the contents of a directory by using a File object’s listFiles() method to get an list of object file. See more detail Filter files using java FilenameFilter
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package com.javabycode.file; import java.io.File; import java.io.FileFilter; import java.io.IOException; public class FileFilterForDirectory { public static void main(String[] args) throws IOException { File current = new File("."); // set current directory FileFilter directoryFilter = new FileFilter() { public boolean accept(File file) { return file.isDirectory(); } }; File[] listFiles = current.listFiles(directoryFilter); for (File f: listFiles ) { if (f.isDirectory()) {// display all children directories in the current one System.out.print("Children directory: "); } else { System.out.print("File:"); } System.out.println(f.getCanonicalPath()); } } } |
Here is the result when we run the above program. All children directories of the directory C:projectsworkspaceDemo are displayed.
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Children directory: C:\projects\workspace\Demo\.settings Children directory: C:\projects\workspace\Demo\bin Children directory: C:\projects\workspace\Demo\src |
That’s all on the tutorial Java filefilter example to list files and directories in a directory. Hope you get and practice this idea on your side.
