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Answer:

JButton

Swing Components

Recall that many Swing classes start with J. Similar AWT classes do not start with J. A frequent error is to forget the J and get the wrong class. Then your program will almost work, but not quite, and finding the problem can be hard. For example, the AWT class Button will not work in place of JButton. Here, as a review, is how the class JButton fits into the Swing hierarchy:

Swing Hierarchy

QUESTION 2:

Is a JButton a kind of container?