Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
11th Edition
ISBN: 9780134670942
Author: Y. Daniel Liang
Publisher: PEARSON
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Chapter 27.8, Problem 27.8.4CP
Program Plan Intro

Hash Code:

  • First, a hash function converts a search key to an integer value and then it compresses this hash code into an index in the hash table.
  • The hash code is simply a 32-bit signed int number, where the object is managed by a hash table.
  • Actually, hash code is not a unique number for an object. The two objects will return the same hash code if both the objects are equal.

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TASK 7. Generic solution (Methods with Variable-Length Arguments). Review varargs, Implement the following code, test it with different input, make sure it runs without errors.
Let's finish working on our booking system.  The last part for our booking system will be to manage multiple flights.  To do this, we'll modify our program's command list.  The command "create [id] [cap]" will try to create a new empty flight with ID [id] and capacity [cap].  The command "delete [id]" will try to remove the flight with ID [id].  The command "add [id] [n]" will try to add n reservations to the flight with ID [id].  The command "cancel [id] [n]" will try to cancel n reservations from the flight with ID [id].  If an operation fails for any reason, the program will issue the message "Cannot perform this operation". You can add a more helpful message to identify why the operation failed.  The command "quit" will stop the execution of the program.  For the sake of simplicty, let's limit the maximum number of handled flights to ten.  Use the code from your previous exercise as a starting point.  Note that we need to add an access method to the flight id field.    PLS ANSWER…
You are to implement removeHead, and removeTail  and you also have to create the following functions (for visual purposes of the detail explanation, header and trailer sentinels are described as h and t respectively): IMPORTANT NOTE: For all the methods that has the pos parameter i.e. addAt, removeAt, move, make sure to access that specified position from whichever is nearer - the head or the tail - similar to what we have done in the get method. Example DoublyLinkedList: h <-> 10 <-> 30 <-> 40 <-> 50 <-> t int add(int num) This will add the element num into the last element of the linked list and return the position of the newly-added element. In the above example, having add(60) will return 5 as it is the fifth position in the list. int remove(int num) This will remove the first instance of the element and return the position of the removed element. In the above example, having remove(40) will return 3 as 40 was the third element in the linked list…
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