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

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Dive into the depths of Java with our quiz based on "Thinking in Java, Fourth Edition" by Bruce Eckel. Test your knowledge, solidify concepts, and prepare for certification with challenging questions and insightful feedback.

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

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).