Method start

output/java_guava/1.4.13/Stopwatch.java:144–150

Starts the stopwatch. @return this Stopwatch instance @throws IllegalStateException if the stopwatch is already running.

()

   */

    @CanIgnoreReturnValue
    public Stopwatch start() {
    checkState(!isRunning, "This stopwatch is already running.");
    isRunning = true;
    startTick = ticker.read();
    return this;
    }

  /**
   * Stops the stopwatch. Future reads will return the fixed duration that had elapsed up to this