Java 2 in 21 Days: Day 14 Java Certification Practice

Day 14: Writing Java Applets and Java Web Start Applications

Certification Practice

Each chapter of the book ends with a Certification Practice question that's comparable to what you could expect to be asked on a Java certification test. Here's the answer for chapter 14:

Answer (b) is correct. The application compiles successfully, but it does not display anything in the frame because nothing was added to the content pane. The slider should be added to the frame by calling pane.add(value) after the slider has been created.

Answer (a) is incorrect. The application compiles but does not run correctly because it doesn't display the slider.

Answer (c) is incorrect. The content pane is empty, but this does not prevent the application from compiling successfully.

Answer (d) is incorrect. The new AskFrame() statement is correct. It calls the AskFrame constructor without assigning the object to a variable.

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Day 14: Writing Java Applets and Java Web Start Applications

Certification Practice