Here you can find the source of time(String tag)
public static void time(String tag)
//package com.java2s; /*/*w ww . ja va 2 s .co m*/ * Copyright 2011 - AndroidQuery.com (tinyeeliu@gmail.com) * * 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. */ import java.util.HashMap; import java.util.Map; public class Main { private static Map<String, Long> times = new HashMap<String, Long>(); public static void time(String tag) { times.put(tag, System.currentTimeMillis()); } }