What are the components and containers in Swing?

What are the components and containers in Swing?

Containers are an integral part of SWING GUI components….SWING – Containers

• Sub classes of Container are called as Container. For example, JPanel, JFrame and JWindow.
• Container can add only a Component to itself.
• A default layout is present in each container which can be overridden using setLayout method.

What are various categories of Swing controls?

Swing Controls in Java with Examples

• JLabel.
• JRadioButton.
• ButtonGroup.
• JCheckBox.
• JTextField.
• JTextArea.
• JButton.
• Border.

What is the function of Swing components in Java?

Swing in java is part of Java foundation class which is lightweight and platform independent. It is used for creating window based applications. It includes components like button, scroll bar, text field etc. Putting together all these components makes a graphical user interface.

What are the Swing component classes explain in detail?

The javax. swing package provides classes for java swing API such as JButton, JTextField, JTextArea, JRadioButton, JCheckbox, JMenu, JColorChooser etc….Commonly used Methods of Component class.

What are the different types of AWT components?

The AWT provides nine basic non-container component classes from which a user interface may be constructed. (Of course, new component classes may be derived from any of these or from class Component itself.) These nine classes are class Button, Canvas, Checkbox, Choice, Label, List, Scrollbar, TextArea, and TextField.

What are two Swing features?

Swing offers two key features:

• Swing components are lightweight and don’t rely on peers.
• Swing supports a pluggable look and feel. The three PLAFs available to all users are Metal (default), Windows, and Motif.

Is there any heavy weight components in Swing?

Recall that top-level components in Swing ( JWindow , JDialog , JApplet , and JFrame ) are heavyweight, everything else isn’t. Lightweight components that are added to those top-level heavyweights can be thought of as drawings on the canvas of each easel.

What are AWT components?

A component is an object with a graphical representation that can be displayed on the screen and that can interact with the user. The Component class is the abstract parent of the nonmenu-related AWT components.

Can presentational components have state?

Presentational components can be stateful, and containers can be stateless too.

How are Swing components different from AWT components?

The Java AWT provides a smaller number of components in comparison to Swing. Java Swing provides a greater number of components than AWT, such as list, scroll panes, tables, color choosers, etc. Java AWT stands for Abstract Window Toolkit. Java Swing is mainly referred to as Java Foundation Classes (JFC).

How many AWT components are there?

What are the benefits of using Swing components?

Advantages of Swing Swing components are platform-independent. Swing components can use a different look and feel. Swing components use the Model-View-Controller paradigm (MVC) and thus can provide a much more flexible UI. Swing components are lightweight (are less resource-intensive than AWT).

Which Swing components are lightweight?

swing package, such as JButton and JLabel, are lightweight components.

How many components are in a Swing?

Building a Swing GUI. The Swing package defines two types of components: top-level containers ( JFrame , JApplet , JWindow , JDialog ) lightweight components ( Jeverything-else , such as JButton , JPanel , and JMenu )

Are Swing components lightweight?

What is @component in Java?

A component is an object having a graphical representation that can be displayed on the screen and that can interact with the user. Examples of components are the buttons, checkboxes, and scrollbars of a typical graphical user interface.