Get current month days - Android java.util

Android examples for java.util:Month

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Description

Get current month days

Demo Code

/*/*ww  w  .  j a  va  2 s.c  om*/
 * Copyright (C) 2016 venshine.cn@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.
 */
//package com.java2s;

import java.util.Calendar;

public class Main {
    /**
     * Get current month days
     */
    public static int getCurrentMonthDays() {
        return getMonthDays(getCurrentYear(), getCurrentMonth());
    }

    /**
     * Get month days by year, month
     *
     * @param year
     * @param month
     * @return
     */
    public static int getMonthDays(int year, int month) {
        Calendar a = Calendar.getInstance();
        a.set(Calendar.YEAR, year);
        a.set(Calendar.MONTH, month - 1);
        a.set(Calendar.DATE, 1);
        a.roll(Calendar.DATE, -1);
        int maxDate = a.get(Calendar.DATE);
        return maxDate;
    }

    /**
     * Get current year
     *
     * @return
     */
    public static int getCurrentYear() {
        return Calendar.getInstance().get(Calendar.YEAR);
    }

    /**
     * Get current month
     *
     * @return
     */
    public static int getCurrentMonth() {
        return Calendar.getInstance().get(Calendar.MONTH) + 1;
    }
}

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