Package com.ibm.icu.dev.util

Class ElapsedTimer

java.lang.Object

com.ibm.icu.dev.util.ElapsedTimer

public final class ElapsedTimer
extends Object

Simple stopwatch timer. Usage: { ElapsedTimer et = new ElapsedTimer(); do_some_stuff; System.out.println("It took " + et + " to do stuff."); } Advanced: { ElapsedTimer et = new ElapsedTimer("Thing2's time: {0}"); // messageformat pattern do_thing_2(); System.out.println(et.toString()); } More advanced: NumberFormat and/or MessageFormat can be provided in the constructor

Field Summary

Fields

Modifier and Type	Field	Description
private static NumberFormat	gFormat
private NumberFormat	myDurationFormat
private MessageFormat	myMsgFormat
private long	startTime

Constructor Summary

Constructors

Constructor	Description
ElapsedTimer()
ElapsedTimer(MessageFormat aMsgFmt)
ElapsedTimer(MessageFormat aMsgFmt, NumberFormat aNumFmt)
ElapsedTimer(NumberFormat aNumFmt)
ElapsedTimer(String pattern)
ElapsedTimer(String pattern, NumberFormat aNumFmt)

Method Summary

Modifier and Type	Method	Description
private static String	diffTime(NumberFormat fmt, long start, long end)
static String	elapsedTime(long start)
static String	elapsedTime(long start, long end)	Convenience method to print the elasped time (in milliseconds)
private static NumberFormat	getFormat()
final String	toString()

Methods inherited from class java.lang.Object

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

Field Details

startTime

private long startTime

myDurationFormat

private NumberFormat myDurationFormat

myMsgFormat

private MessageFormat myMsgFormat

gFormat

private static NumberFormat gFormat

Constructor Details

ElapsedTimer

public ElapsedTimer()

ElapsedTimer

public ElapsedTimer(MessageFormat aMsgFmt)

ElapsedTimer

public ElapsedTimer(NumberFormat aNumFmt)

ElapsedTimer

public ElapsedTimer(MessageFormat aMsgFmt,
 NumberFormat aNumFmt)

ElapsedTimer

public ElapsedTimer(String pattern)

ElapsedTimer

public ElapsedTimer(String pattern,
 NumberFormat aNumFmt)

Method Details

elapsedTime

public static String elapsedTime(long start,
 long end)

Convenience method to print the elasped time (in milliseconds)

elapsedTime

public static String elapsedTime(long start)

toString

public final String toString()

Overrides:

toString in class Object

Returns:

elapsed time in seconds since object creation

getFormat

private static NumberFormat getFormat()

diffTime

private static String diffTime(NumberFormat fmt,
 long start,
 long end)