Mastering Java: The Ultimate Quiz for 'Thinking in Java'

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Mastering Java: The Ultimate Quiz for 'Thinking in Java'. Dive deep into Java with multiple-choice questions. Challenge yourself with quiz questions designed to test and improve your understanding of the 'Thinking in Java' book. Get ready for your exam!

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What method do you use to make a JFrame visible?

showFrame()
setVisible(true)
displayFrame()
openFrame()

The correct answer is: setVisible(true)

The method used to make a JFrame visible is setVisible(true). This method sets the visibility of the frame to true, making it appear on the screen. Option A, showFrame(), is not a valid method for JFrame. Option C, displayFrame(), is incorrect as the method to display a frame is not specific to JFrame and can be used for other types of components. Option D, openFrame(), is incorrect as it is not a valid method for JFrame. Therefore, the correct method to make a JFrame visible is B, setVisible(true).