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Java 时间范围 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));
}
}


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