Klasse StopWatch
StopWatch
provides a convenient API for timings.
To start the watch, call start()
. At this point you can:
split()
the watch to get the time whilst the watch continues in the background.unsplit()
will remove the effect of the split. At this point, these three options are available again.suspend()
the watch to pause it.resume()
allows the watch to continue. Any time between the suspend and resume will not be counted in the total. At this point, these three options are available again.stop()
the watch to complete the timing session.
It is intended that the output methods toString()
and
getTime()
should only be called after stop, split or suspend,
however a suitable result will be returned at other points.
NOTE: As from v2.1, the methods protect against inappropriate calls. Thus you cannot now call stop before start, resume before suspend or unsplit before split.
1. split(), suspend(), or stop() cannot be invoked twice
2. unsplit() may only be called if the watch has been split()
3. resume() may only be called if the watch has been suspend()
4. start() cannot be called twice without calling reset()
- Seit:
- 2.0
- Version:
- $Id$
- Autor:
- Henri Yandell, Stephen Colebourne
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Konstruktorübersicht
Konstruktoren -
Methodenübersicht
Modifizierer und TypMethodeBeschreibunglong
Get the split time on the stopwatch.long
getTime()
Get the time on the stopwatch.void
reset()
Resets the stopwatch.void
resume()
Resume the stopwatch after a suspend.void
split()
Split the time.void
start()
Start the stopwatch.void
stop()
Stop the stopwatch.void
suspend()
Suspend the stopwatch for later resumption.toString()
Gets a summary of the time that the stopwatch recorded as a string.void
unsplit()
Remove a split.
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Konstruktordetails
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StopWatch
public StopWatch()Constructor.
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Methodendetails
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start
public void start()Start the stopwatch.
This method starts a new timing session, clearing any previous values.
- Löst aus:
IllegalStateException
- if the StopWatch is already running.
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stop
public void stop()Stop the stopwatch.
This method ends a new timing session, allowing the time to be retrieved.
- Löst aus:
IllegalStateException
- if the StopWatch is not running.
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reset
public void reset()Resets the stopwatch. Stops it if need be.
This method clears the internal values to allow the object to be reused.
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split
public void split()Split the time.
This method sets the stop time of the watch to allow a time to be extracted. The start time is unaffected, enabling
unsplit()
to continue the timing from the original start point.- Löst aus:
IllegalStateException
- if the StopWatch is not running.
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unsplit
public void unsplit()Remove a split.
This method clears the stop time. The start time is unaffected, enabling timing from the original start point to continue.
- Löst aus:
IllegalStateException
- if the StopWatch has not been split.
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suspend
public void suspend()Suspend the stopwatch for later resumption.
This method suspends the watch until it is resumed. The watch will not include time between the suspend and resume calls in the total time.
- Löst aus:
IllegalStateException
- if the StopWatch is not currently running.
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resume
public void resume()Resume the stopwatch after a suspend.
This method resumes the watch after it was suspended. The watch will not include time between the suspend and resume calls in the total time.
- Löst aus:
IllegalStateException
- if the StopWatch has not been suspended.
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getTime
public long getTime()Get the time on the stopwatch. This is either the time between the start and the moment this method is called, or the amount of time between start and stop.- Gibt zurück:
- the time in milliseconds
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getSplitTime
public long getSplitTime()Get the split time on the stopwatch. This is the time between start and latest split.- Gibt zurück:
- the split time in milliseconds
- Löst aus:
IllegalStateException
- if the StopWatch has not yet been split.- Seit:
- 2.1
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toString
Gets a summary of the time that the stopwatch recorded as a string.
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