42 lines
892 B
Java
42 lines
892 B
Java
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/*************************************************************************
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* Compilation: javac Stopwatch.java
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*
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*
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*************************************************************************/
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/**
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* The Stopwatch data type is for measuring
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* the time that elapses between the start and end of a
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* programming task (wall-clock time).
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*
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* See {@link StopwatchCPU} for a version that measures CPU time.
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*
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* @author Robert Sedgewick
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* @author Kevin Wayne
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*/
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public class Stopwatch {
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private final long start;
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/**
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* Initialize a stopwatch object.
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*/
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public Stopwatch() {
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start = System.currentTimeMillis();
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}
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/**
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* Returns the elapsed time (in seconds) since this object was created.
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*/
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public double elapsedTime() {
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long now = System.currentTimeMillis();
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return (now - start) / 1000.0;
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}
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}
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