java_获取昨天开始和结束时间

1、获取昨天的开始时间

public static Date getBeginDayOfYesterday() {
    Calendar cal = new GregorianCalendar();
    cal.setTime(getDayBegin());
    cal.add(Calendar.DAY_OF_MONTH, -1);
    return cal.getTime();
}

2、获取昨天的结束时间

public static Date getEndDayOfYesterDay() {
    Calendar cal = new GregorianCalendar();
    cal.setTime(getDayEnd());
    cal.add(Calendar.DAY_OF_MONTH, -1);
    return cal.getTime();
}