Final answer:
Option C is answer. To handle a button click in Java, specify the actions in a class that implements the ActionListener interface and override the actionPerformed method to define the button click behavior.
Step-by-step explanation:
To specify what the program should do when the user clicks a button, you would: c) Specify the actions to take in a class that implements the ActionListener interface. In the context of Java programming, when working with graphical user interface (GUI) components like buttons, you define a class that implements ActionListener. Inside this class, you need to provide an implementation for the actionPerformed method, which is called when the associated event, such as a button click, occurs.
An example of this is creating a private inner class or a separate class that implements ActionListener, then creating an instance of that class and using the addActionListener method of the button to register it. When the button is pressed, the actionPerformed method will be executed, containing the code that defines the actions to take in response to the button click.