February 2014
Beginner
1248 pages
62h 25m
English
Content preview from Java™ How To Program (Early Objects), Tenth Edition
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Glue
The for statement at lines 38–42 adds three JButtons to horizontal2. Before adding each button, line 40 adds horizontal glue to the container with static Box method createHorizontalGlue. Horizontal glue is an invisible GUI component that can be used between fixed-size GUI components to occupy additional space. Normally, extra space appears to the right of the last horizontal GUI component or below the last vertical one in a BoxLayout. Glue allows the extra space to be placed between GUI components. When the container is resized, components separated by glue components remain the same size, but the glue stretches or contracts to occupy the space between them. Class Box also declares method createVerticalGlue for vertical BoxLayouts.
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