java获取本月第一天，最后一天

java获取本月第一天，最后一天

获取本月第一天：

public static Date getMonthFirstDay(){
    Calendar calendar = Calendar.getInstance();
    calendar.setTime(new Date());
    calendar.set(Calendar.DAY_OF_MONTH,1);
    calendar.add(Calendar.MONTH,0);
    return calendar.getTime();
}

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获取本月最后一天：

public static Date getMonthLastDay(){
    Calendar calendar = Calendar.getInstance();
    calendar.setTime(new Date());
    calendar.set(Calendar.DAY_OF_MONTH,0);
    calendar.add(Calendar.MONTH,1);
    return calendar.getTime();
}

---

获取下个月第一天：

public static Date getNextMonthFirstDay(){
    Calendar calendar = Calendar.getInstance();
    calendar.setTime(new Date());
    calendar.set(Calendar.DAY_OF_MONTH,1);
    calendar.add(Calendar.MONTH,1);
    return calendar.getTime();
}

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转自：https://blog.csdn.net/qq_38362772/article/details/92666845