org.kocakosm.pitaya.time

Class Stopwatch

java.lang.Object

org.kocakosm.pitaya.time.Stopwatch

public final class Stopwatch
extends Object

Utility class to measure elapsed time between specific instants. Note that while this class provides millisecond precision, it does not necessarily provide millisecond accuracy (depends, among many things, on the accuracy of the underlying system clock). Instances of this class are not thread-safe.

Author:

Osman KOCAK

Constructor Summary

Constructors

Constructor and Description
Stopwatch() Creates a new (unstarted) Stopwatch.

Method Summary

Methods

Modifier and Type	Method and Description
long	elapsedTime() Returns the current elapsed time, expressed in milliseconds.
boolean	isRunning() Returns true if start() has been called on this object, and stop() hasn't been called since the last call to start().
Stopwatch	reset() Resets this stopwatch (sets the elapsed time for this stopwatch to zero).
Stopwatch	start() Starts this stopwatch.
Stopwatch	stop() Stops this stopwatch.
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Stopwatch

public Stopwatch()

Creates a new (unstarted) Stopwatch.

Method Detail

isRunning

public boolean isRunning()

Returns true if start() has been called on this object, and stop() hasn't been called since the last call to start().

Returns:

whether this stopwatch is running.

start

public Stopwatch start()

Starts this stopwatch.

Returns:

this object.

Throws:

IllegalStateException - if this stopwatch is already running.

stop

public Stopwatch stop()

Stops this stopwatch.

Returns:

this object.

Throws:

IllegalStateException - if this stopwatch is already stopped.

reset

public Stopwatch reset()

Resets this stopwatch (sets the elapsed time for this stopwatch to zero). Calling this method does NOT modify this stopwatch's state.

Returns:

this object.

elapsedTime

public long elapsedTime()

Returns the current elapsed time, expressed in milliseconds. Calling this method does NOT modify this stopwatch's state.

Returns:

the current elapsed time.

toString

public String toString()

Overrides:

toString in class Object