Specifying the Layout
When building a GUI, you must attach each GUI component to a container, such as a window created with a JFrame. Also, you typically must decide where to position each GUI component—known as specifying the layout. Java provides several layout managers that can help you position components.
Many IDEs provide GUI design tools in which you can specify components’ exact sizes and locations in a visual manner by using the mouse; then the IDE will generate the GUI code for you. Such IDEs can greatly simplify GUI creation.
To ensure that our GUIs can be used with any IDE, we did not use an IDE to create the GUI code. We use Java’s layout managers to size and position components. With the FlowLayout layout manager, components are ...
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