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<TITLE>Computing Elapsed Time
(Java Developers Almanac Example)
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<META CONTENT="Patrick Chan" NAME="AUTHOR">
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<h3>
e51.
Computing Elapsed Time</h3>
<pre>
// Get current time
long start = System.currentTimeMillis();
// Do something ...
// Get elapsed time in milliseconds
long elapsedTimeMillis = System.currentTimeMillis()-start;
// Get elapsed time in seconds
float elapsedTimeSec = elapsedTimeMillis/1000F;
// Get elapsed time in minutes
float elapsedTimeMin = elapsedTimeMillis/(60*1000F);
// Get elapsed time in hours
float elapsedTimeHour = elapsedTimeMillis/(60*60*1000F);
// Get elapsed time in days
float elapsedTimeDay = elapsedTimeMillis/(24*60*60*1000F);
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Related Examples
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The Quintessential Java Application
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e49. <a class="eglink" href="Exit.html?l=rel">
Terminating the Application
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e50. <a class="eglink" href="ExitHook.html?l=rel">
Determining When the Application Is About to Exit
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e52. <a class="eglink" href="LoadNative.html?l=rel">
Loading Native Code
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e53. <a class="eglink" href="Sortable.html?l=rel">
Implementing a Class That Can Be Sorted
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e54. <a class="eglink" href="Redirect.html?l=rel">
Redirecting Standard Output, and Error
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e55. <a class="eglink" href="GetHeapSize.html?l=rel">
Getting the Size of the Heap
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See also:
<a class="eglink" href="/egs/java.lang/pkg.html?l=rel#Arrays">
Arrays
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<a class="eglink" href="/egs/java.lang/pkg.html?l=rel#Assertions">
Assertions
</a>
<a class="eglink" href="/egs/java.lang/pkg.html?l=rel#Classes">
Classes
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<a class="eglink" href="/egs/java.lang/pkg.html?l=rel#Commands">
Commands
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<a class="eglink" href="/egs/java.lang/pkg.html?l=rel#Numbers">
Numbers
</a>
<a class="eglink" href="/egs/java.lang/pkg.html?l=rel#Objects">
Objects
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<a class="eglink" href="/egs/java.lang/pkg.html?l=rel#Strings">
Strings
</a>
<a class="eglink" href="/egs/java.lang/pkg.html?l=rel#System%20Properties">
System Properties
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<a class="eglink" href="/egs/java.lang/pkg.html?l=rel#Threads">
Threads
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