计算时间差，,/** * 计算

计算时间差，,/** * 计算

/**     * 计算时间差     * @param begin     * @param end     * @return 返回格式,"hh:mm:ss"     */    public String getTimeDifference(Date begin,Date end) {        long between=(end.getTime()-begin.getTime())/1000;//除以1000是为了转换成秒        long hour=between%(24*3600)/3600;        long minute=between%3600/60;        long second=between%60;        StringBuffer time=new StringBuffer();        if(hour!=0){            time.append(hour+":");        }        if(time.length()!=0){            time.append(String.format("%02d:", minute));        }else if(minute!=0){            time.append(String.format("%d:", minute));        }        if(time.length()!=0){            time.append(String.format("%02d", second));        }else{            time.append(second);        }        return time.toString();    }//该片段来自于http://byrx.net