What is a Contentpane?

A Content Pane is the most basic layout tile. Conceptually, it’s like the content boxes in portals like MyYahoo. A content pane resembles an iframe, but contains extra design features, fits in with the current theme, and renders widgets properly.

When should I use JPanel?

You use a JPanel for one or more of the following benefits:

  1. To group components together.
  2. To better organize your components.
  3. To enable us to use multiple layouts and combine their effects.
  4. To break down a large problem into sub-problems.
  5. For reusability if you have customized panels.

What is the difference between a JFrame and an JPanel?

Basically, a JFrame represents a framed window and a JPanel represents some area in which controls (e.g., buttons, checkboxes, and textfields) and visuals (e.g., figures, pictures, and even text) can appear.

How many panes or Jpanels can be placed in another pane or JPanel )?

Yes, but only one JPanel may be placed inside another.

Can I add JFrame to JPanel?

You could call getContentPane() on the JFrame to extract its main contents as a JPanel (usually) and without the menu bar and decorations, and display that as a JPanel though best would probably be to update the original program so that it produces a JPanel and not a JFrame.

What is the difference between JPanel and container?

JPanel actually serves as a general purpose container. It is where more complex, or bigger operations, are usually put. You can put many operations inside one panel. JPanel is a subclass of JComponent, and JComponent is a subclass of Container, therefore, JPanel is also a container.

Is JPanel a container?

JFrame = a heavy weight container used as the top-level window. JPanel = a light weight container used to organize GUI components.

What type of component is a JPanel ()?

JPanel is a Swing’s lightweight container which is used to group a set of components together. JPanel is a pretty simple component which, normally, does not have a GUI (except when it is being set an opaque background or has a visual border).

Can we add JFrame to JPanel?