Big Java Late Objects
Big Java Late Objects
2nd Edition
ISBN: 9781119330455
Author: Horstmann
Publisher: WILEY
Question
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Chapter 14, Problem 7PP
Program Plan Intro

To implement radix sort algorithm

Program plan:

  • In the file ArrayUtil.java”, import necessary package, and create a class ArrayUtil”,
    • Create “Random” object.
    • Define the method “randomIntArray()”to create an array filled with random values.
    • Define the method “swap()” to swap two entries of an array.
  • In the file StopWatch.java”, create a class StopWatch”,
    • Declare private variable.
    • Define the constructor to construct a stopwatch that is in the stopped state and has no time accumulated.
    • Define the method “start()” to start the stopwatch, and time starts accumulating now.
    • Define the method “stop()” to stop the stopwatch, and time stops accumulating and is added to the elapsed time.
    • Define the method “getElapsedTime()” to return the total elapsed time.
    • Define the method “reset()” to stop the watch and resets the elapsed time to 0.
  • In the file Radix.java”, create a class Radix”,
    • Define the method “sort()” to sort the array using radix sort.
  • In the file RadixSortTimer.java”, import the package, and create a class “RadixSortTimer”,
    • Define the method “main()”,
      • Initialize the necessary variables.
      • Create random array.
      • Create an object for “StopWatch”.
      • Call the method “start()” to start the timer.
      • Call the method “sort()” to sort the array.
      • Call the method “stop()” to stop.
      • Check if the array is sorted, using the function “checkSorted()”,
      • If it is true, print the elapsed time.
        • Otherwise, print the error.
        • Define the method “checkSorted()” to check whether the array is sorted.

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Exercise 1 Function and Structure [30 pts] Please debug the following program and answer the following questions. There is a cycle in a linked list if some node in the list can be reached again by continuously following the next pointer. #include typedef struct node { int value; struct node *next; } node; int 11_has_cycle (node *first) if (first == node *head = { NULL) return 0; first; while (head->next != NULL) { } if (head first) { return 1; } head = head->next; return 0; void test ll_has_cycle () { int i; node nodes [6]; for (i = 0; i < 6; i++) { nodes [i] .next = NULL; nodes [i].value = i; } nodes [0] .next = &nodes [1]; nodes [1] .next = &nodes [2]; nodes [2] .next = &nodes [3]; nodes [3] .next nodes [4] .next &nodes [4]; NULL; nodes [5] .next = &nodes [0]; printf("1. Checking first list for cycles. \n Function 11_has_cycle says it has s cycle\n\n", 11_has_cycle (&nodes [0])?"a":"no"); printf("2. Checking length-zero list for cycles. \n Function 11_has_cycle says it has %s…
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Big Java Late Objects

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