Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright 2010 Srikanth Reddy Lingala  
 * 
 * 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.Calendar;

public class Main {
    /**
     * Converts input time from Java to DOS format
     * @param time
     * @return time in DOS format 
     */
    public static long javaToDosTime(long time) {

        Calendar cal = Calendar.getInstance();
        cal.setTimeInMillis(time);

        int year = cal.get(Calendar.YEAR);
        if (year < 1980) {
            return (1 << 21) | (1 << 16);
        }
        return (year - 1980) << 25 | (cal.get(Calendar.MONTH) + 1) << 21 | cal.get(Calendar.DATE) << 16
                | cal.get(Calendar.HOUR_OF_DAY) << 11 | cal.get(Calendar.MINUTE) << 5
                | cal.get(Calendar.SECOND) >> 1;
    }
}