Which of the following is false?
A) JFrame is a lightweight component.
B) JFrame is a subclass of Frame (which is a subclass of Window).
C) JFrames have a title bar and a border.
D) A JFrame window will look like all other windows displayed on that platform.

Question

Quizplus · Accepted Answer

JFrame is not a lightweight component; it is a top-level container that provides a window on the screen. Lightweight components in Java Swing, such as JButton or JLabel, are those that delegate the painting to their parent component or another lightweight container for efficiency. JFrame, being a top-level Swing container, relies on the native windowing system to render its window, making it a heavyweight component.

Which of the Following Is False