Java tutorial
//package com.java2s; /* * Copyright 2013 Maxim Kalina * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ public class Main { private static final String determineMimeType(String location) { String s = location.toLowerCase().trim(); if (s.endsWith("png")) return "image/png"; if (s.endsWith("gif")) return "image/gif"; if (s.endsWith("jpg") || s.endsWith("jpeg")) return "image/jpeg"; return "image/gif"; // default } }