写一段java代码计算两个时间相差的分钟数

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

public class TimeDifference {

public static void main(String[] args) {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Date startTime = null;
Date endTime = null;
try {
startTime = sdf.parse("2018-10-20 17:10:00");
endTime = sdf.parse("2018-10-20 17:22:00");
} catch (ParseException e) {
e.printStackTrace();
}
long between = endTime.getTime() - startTime.getTime();
long min = between / (1000 * 60);
System.out.println("相差分钟数:" + min);
}
}