Programming in Java

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Programming in Java

CBCS BHCS03

By Parul Chachra

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Chapter 31

Introducing Swing

Reference: Schildt, H. Java: The Complete Reference. 7th ediEon. McGraw-

Hill EducaEon

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Components

•  In general, Swing components are derived from the JComponent class

•  JComponent provides the funcEonality that is common to all components

•  For example, JComponent supports the pluggable look and feel

•  JComponent inherits the AWT classes Container and Component

•  Thus, a Swing component is built on and

compaEble with an AWT component

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Components

•  All of Swing’s components are represented by

classes deﬁned within the package javax.swing:

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Containers

•  Swing deﬁnes two types of containers

– Lightweight Containers – Top-level containers

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Lightweight Containers

•  Lightweight containers do inherit JComponent

•  An example of a lightweight container is JPanel, which is a general-purpose container

•  Lightweight containers are oTen used to organize and manage groups of related components because a lightweight container can be contained within

another container

•  Thus, you can use lightweight containers such as JPanel to create subgroups of related controls that are contained within an outer container

Programming in Java