February 2014
Beginner
1248 pages
62h 25m
English
Content preview from Java™ How To Program (Early Objects), Tenth Edition
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Struts
The loop at lines 27–28 adds three JButtons to horizontal1. The for statement at lines 31–35 adds three JButtons to vertical1. Before adding each button, line 33 adds a vertical strut to the container with static Box method createVerticalStrut. A vertical strut is an invisible GUI component that has a fixed pixel height and is used to guarantee a fixed amount of space between GUI components. The int argument to method createVerticalStrut determines the height of the strut in pixels. When the container is resized, the distance between GUI components separated by struts does not change. Class Box also declares method createHorizontalStrut for horizontal BoxLayouts.
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