例如 20030202 - 20030203 中间差两天

public class test{
public static void main(String[] args) throws ParseException{
int days = dataDiff("20030202","20030203");
System.out.println(days);
}
private static int dataDiff(String fromDate, String toDate) throws ParseException {
// TODO Auto-generated method stub
int days=0;
SimpleDateFormat df = new SimpleDateFormat("yyyyMMdd");
Date from = df.parse(fromDate);
Date to = df.parse(toDate);
days = (int) (Math.abs((to.getTime()-from.getTime())/(24*60*60*1000))+1);
return days;
}
}

得到的值
就是
2

额，LZ，要是要计算两个时间点之间相差多少小时或多少分钟呢？