Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright 2004-2014 the Seasar Foundation and the Others.
 *
 * 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 {
    public static void moveToCalendarDayJust(Calendar cal) { // 2011/11/17 00:00:00.000
        moveToCalendarDayJust(cal, cal.getActualMinimum(Calendar.HOUR_OF_DAY));
    }

    public static void moveToCalendarDayJust(Calendar cal, int dayBeginHour) {
        final int realBeginValue;
        if (dayBeginHour >= 0) {
            realBeginValue = dayBeginHour;
        } else {
            realBeginValue = (dayBeginHour * -1); // remove minus
            addCalendarDay(cal, -1);
        }
        moveToCalendarHour(cal, realBeginValue);
        clearCalendarMinuteWithRear(cal);
    }

    public static void addCalendarDay(Calendar cal, int days) {
        cal.add(Calendar.DAY_OF_MONTH, days);
    }

    public static void moveToCalendarHour(Calendar cal, int hour) {
        assertArgumentNotMinusInteger("hour", hour);
        cal.set(Calendar.HOUR_OF_DAY, hour);
    }

    public static void clearCalendarMinuteWithRear(Calendar cal) {
        cal.set(Calendar.MINUTE, cal.getActualMinimum(Calendar.MINUTE));
        clearCalendarSecondWithRear(cal);
    }

    protected static void assertArgumentNotMinusInteger(String name, int value) {
        if (value < 0) {
            String msg = "The argument '" + name + "' should be plus or zero value: " + value;
            throw new IllegalArgumentException(msg);
        }
    }

    public static void clearCalendarSecondWithRear(Calendar cal) {
        cal.set(Calendar.SECOND, cal.getActualMinimum(Calendar.SECOND));
        clearCalendarMillisecond(cal);
    }

    public static void clearCalendarMillisecond(Calendar cal) {
        cal.set(Calendar.MILLISECOND, cal.getActualMinimum(Calendar.MILLISECOND));
    }
}