Introduction to Java Programming and Data Structures, Comprehensive Version, Student Value Edition (11th Edition)
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Chapter 23, Problem 23.19PE

(Quicksort partition animation) Write a program that animates the partition for a quick sort. The program creates a list that consists of 20 random numbers from 1 to 999. The list is displayed, as shown in Figure 23.22b. Clicking the Step button causes the program to move low to the right or high to the left, or swap the elements at low and high. Clicking the Reset button creates a new list of random numbers for a new start. When the algorithm is finished, clicking the Step button displays a message to inform the user.

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