Java ʱ¼ä·¶Î§ Util

 import java.util.Date;
public class TimeSpan
{
public final static TimeSpan ZERO = new TimeSpan(0);

private long _totalMilliSeconds = 0;

public TimeSpan(long totalMilliSeconds)
{
_totalMilliSeconds = totalMilliSeconds;
}

public TimeSpan(Date afterDate, Date beforeDate)
{
this(afterDate.getTime() - beforeDate.getTime());
}

public long getMilliSeconds()
{
return _totalMilliSeconds;
}
public long getSeconds()
{
return Math.round(_totalMilliSeconds/1000);
}
public long getMinutes()
{
return Math.round(_totalMilliSeconds/(1000*60));
}
public long getHours()
{
return Math.round(_totalMilliSeconds/(1000*60*60));
}
}