Java tutorial
//package com.java2s; public class Main { public static boolean isVideo(String filename) { String mimeType = getMimeType(filename); if (mimeType != null && mimeType.startsWith("video/")) { return true; } else { return false; } } public static String getMimeType(String filename) { String mimeType = null; if (filename == null) { return mimeType; } if (filename.endsWith(".3gp")) { mimeType = "video/3gpp"; } else if (filename.endsWith(".mid")) { mimeType = "audio/mid"; } else if (filename.endsWith(".mp3")) { mimeType = "audio/mpeg"; } else if (filename.endsWith(".xml")) { mimeType = "text/xml"; } else { mimeType = ""; } return mimeType; } }