java计算时间差

a657281084

于 2016-01-26 17:13:35 发布

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1.java计算时间差

public static int daysBetween(String startDate,String endDate) throws ParseException{  
    SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd");  
    Calendar cal = Calendar.getInstance();    
    cal.setTime(sdf.parse(startDate));    
    long time1 = cal.getTimeInMillis();                 
    cal.setTime(sdf.parse(endDate));    
    long time2 = cal.getTimeInMillis();         
    long between_days=(time2-time1)/(1000*3600*24);  
        
   return Integer.parseInt(String.valueOf(between_days));     
}