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55 lines
1.5 KiB
Plaintext
55 lines
1.5 KiB
Plaintext
[[Property:title|Example: Sleep]]
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[[Property:weight|0]]
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[[Property:uuid|a846db1c-2096-43a9-bb8b-a233c9e21421]]
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==Description==
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Write a program that does the following in this order:
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# Input an amount of time to sleep in whatever units are most natural for your language (milliseconds, seconds, ticks, etc.). This unit should be noted in comments or in a description.
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# Print "Sleeping..."
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# Sleep the main thread for the given amount of time.
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# Print "Awake!"
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# End.
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==Notes==
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The feature <code lang="eiffel">sleep</code> is defined in the library class <code>EXECUTION_ENVIRONMENT</code>. So the demonstration class <code>APPLICATION</code> inherits from <code>EXECUTION_ENVIRONMENT</code> in order to make <code lang="eiffel">sleep</code> available.
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<code lang="eiffel">sleep</code> takes an argument which declares the number of nanoseconds to suspend the thread's execution.
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==Source==
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Problem description from [http://rosettacode.org/wiki/Sleep Rosetta Code]
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==Solution==
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<code>
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class
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APPLICATION
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inherit
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EXECUTION_ENVIRONMENT
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create
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make
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feature -- Initialization
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make
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-- Sleep for a given number of nanoseconds.
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do
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print ("Enter a number of nanoseconds: ")
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io.read_integer_64
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print ("Sleeping...%N")
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sleep (io.last_integer_64)
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print ("Awake!%N")
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end
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end
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</code>
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==Output (sleeping 10 seconds)==
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<code lang="text">
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Enter a number of nanoseconds: 10000000000
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Sleeping...
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Awake!
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</code>
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