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Swing Interview Questions And Answers
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Questions 11 What advantage do Java's layout managers provide over traditional windowing systems?
Answer
Java uses layout managers to lay out components in a consistent manner across all windowing platforms. Since Java's layout managers aren't tied to absolute sizing and positioning, they are able to accommodate platform-specific differences among windowing systems.
Questions 12 What is the relationship between clipping and repainting?
Answer
When a window is repainted by the AWT painting thread, it sets the clipping regions to the area of the window that requires repainting.
Questions 13 What is the difference between a Window and a Frame?
Answer
The Frame class extends Window to define a main application window that can have a menu bar. A window can be modal.
Questions 14 How the Canvas class and the Graphics class are related?
Answer
A Canvas object provides access to a Graphics object via its paint() method.
Questions 15 Which is the super class of all event classes?
Answer
The java.awt.AWTEvent class is the highest-level class in the AWT event-class hierarchy.
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