Java tutorial
//package com.java2s; /* * 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. */ import java.util.Calendar; public class Main { /** * Get next month end day * * @return */ public static int getNextMonthEndDay() { Calendar lastDate = Calendar.getInstance(); lastDate.add(Calendar.MONTH, 1); lastDate.set(Calendar.DATE, 1); lastDate.roll(Calendar.DATE, -1); return lastDate.getActualMaximum(Calendar.DAY_OF_MONTH); } }