May 2024
Intermediate to advanced
889 pages
37h 5m
English
Content preview from Java Programming by Pearson
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488 • Java Programming
(a) Applet at the beginning (b) Applet after using vertical scroll bar
Figure 16.26 Output screen of Program 16.24
Explanation: In the init() a vertical scroll bar is created by the name SB . The minimum and maximum
values for this scroll bar are 5 and 500, respectively, and unit increment is 5 . In the adjustment
ValueChanged method, the type of events occurring onto the scroll bar are recognized. For UNIT_
INCREMENT and UNIT_DECREMENT events the value of Y was incremented/decremented by 5 . For
the BLOCK_INCREMENT and BLOCK_DECREMENT event, the value of Y was incremented/decremented
by
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