Java tutorial
//package com.java2s; import java.util.HashMap; import java.util.Map; public class Main { private static Map<String, String> FORMAT_TO_CONTENTTYPE = new HashMap<String, String>(); public static String getContentType(String attFormat) { String contentType = FORMAT_TO_CONTENTTYPE.get("null"); if (attFormat != null) { contentType = (String) FORMAT_TO_CONTENTTYPE.get(attFormat.toLowerCase()); } return contentType; } }