Which of the following GUI classes requires that it have a LayoutManager before any GUI components are added to it?
A) JButton
B) JSlider
C) JPanel
D) JFrame
E) both C and D but not A or B

Question

Quizplus · Accepted Answer

C) The JPanel requires adding a LayoutManager to it before any components are added to it. This allows the components added to be arranged on the JPanel as desired. Neither the JButton nor JSlider have components added to them and so do not require a LayoutManager. The JFrame does not use a LayoutManager but instead adds elements through getContentPane( ).

Which of the Following GUI Classes Requires That It Have