The MilesPerGallonController class handles the events generated when the user slides the slider or presses the button. The variables labeled with the @FXL annotation correspond to the fx:id property of key components. Some components, like the “Gas Used” label, do not need to be referred to in the code and therefore don’t need an fx:id. Write the final version of the MilesPerGallonController class:

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Running Time of Application

The application has a feature called running time. It is one of the parameters for measuring its performance. It is written in a particular language and is designed to perform a specific task. Applications run in a specific environment. The execution of the business will depend on the application’s running time. It must be optimized in order to get the maximum benefits out of the application.