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Advanced Java - Interview Questions and Answers

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31. Name three Component subclasses that support painting.

The Canvas, Frame, Panel, and Applet classes support painting.

32. What value does readLine() return when it has reached the end of a file?

The readLine() method returns null when it has reached the end of a file.

33. What is the immediate superclass of the Dialog class?

Window.

34. What is clipping?

Clipping is the process of confining paint operations to a limited area or shape.

35. What is a native method?

A native method is a method that is implemented in a language other than Java.

36. Can a for statement loop indefinitely?

Yes, a for statement can loop indefinitely. For example, consider the following:

for(;;) ;

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