Advanced Java - Interview Questions and Answers


  1. Name three Component subclasses that support painting.
    The Canvas, Frame, Panel, and Applet classes support painting.
  2. 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.
  3. What is the immediate superclass of the Dialog class?
    Window.
  4. What is clipping?
    Clipping is the process of confining paint operations to a limited area or shape.
  5. What is a native method?
    A native method is a method that is implemented in a language other than Java.
  6. Can a for statement loop indefinitely?

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

    for(;;) ;


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