How to search directory for specific files?

How do you search the given word in all files from the directory in java?

• Answer:

  The program below will search all non-directory files in the starting directory. If you want to search all subdirectories, you'll have to modify it to recurse a bit. Note that this will also only do plain text searches of files. It will most likely not find your string in a MS Word .doc file. Also note that this will not find multiple-line search strings, since it reads and checks one line of the file at a time. { final String dirName; // path of directory you want to search final String str = ""; // string to search for final File dir = new File(dirName); for (File f : dir.listFiles()) { if (!f.isDirectory()) { System.out.println(f + ": " + fileContains(f, str)); } } } // returns true iff f contains str private static final boolean fileContains(final File f, final String str) throws IOException { final BufferedReader in = new BufferedReader(new FileReader(f)); String currentLine; while ((currentLine = in.readLine()) != null) { if (currentLine.contains(str)) { in.close();return true; } } in.close(); return false; }