Chapter 19, Problem 13PC

Program Plan Intro

Inventory Bin Queue

Program Plan:

InventoryItem.h:

• Include required header files
• Declare a class named “InventoryItem”. Inside the class,
  • Inside “private” access specifier,
    • Declare variables “serialNum”, “manufactDate”, and “lotNum”.
  • Inside “public” access specifier,
    • Give definition for default constructor.
    • Give definition for overloaded constructor.
    • Give mutator function “set_SerialNum ()” to set serial number.
    • Give mutator function “set_ManufactDate ()” to set date.
    • Give mutator function “set_LotNum ()” to set lot number.
    • Give accessor function “get_SerialNum ()” that returns serial number.
    • Give accessor function “get_ManufactDate ()” that returns date.
    • Give accessor function “get_LotNum ()” that returns lot number.

Dynqueue.h:

• Include required header files.
• Create template class
• Declare a class named “Dynqueue”. Inside the class,
  • Inside the “private” access specifier,
    • Create a structure named “QueueNode”.
      • Create an object for the template
      • Create a pointer named “next”.
    • Create two pointers named “front” and “rear”.
  • Inside “public” access specifier,
    • Declare constructor and destructor.
    • Declare the functions “enqueue ()”, “dequeue ()”, “isEmpty ()”, “isFull ()”, and “clear ()”.
• Declare template class.
• Give definition for the constructor.
  • Assign the values.
• Declare template class.
• Give definition for the destructor.
  • Call the function “clear ()”.
• Declare template class.
• Give function definition for “enqueue ()”.
  • Make the pointer “newNode” as null.
  • Assign “num” to newNode->value.
  • Make newNode->next as null.
  • Check whether the queue is empty using “isEmpty ()” function.
    • If the condition is true then, assign newNode to “front” and “rear”.
    • If the condition is not true then,
      • Assign newNode to rear->next
      • Assign newNode to “rear”.
    • Increment the variable “numItems”.
• Declare template class.
• Give function definition for “dequeue ()”.
  • Assign temp pointer as null.
  • Check if the queue is empty using “isEmpty()” function.
    • If the condition is true then print “The queue is empty”.
    • If the condition is not true then,
      • Assign the value of front to the variable “num”.
      • Make front->next as “temp”.
      • Delete the front value
      • Make temp as front.
      • Decrement the variable “numItems”.
• Declare template class.
• Give function definition for “isEmpty ()”.
  • Assign “true” to a Boolean variable
  • Check if “numItems” is true.
    • If the condition is true then assign “false” to the variable.
  • Return the Boolean variable.
• Declare template class.
• Give function definition for “clear ()”.
  • Create an object for template.
    • Dequeue values from queue till the queue becomes empty using “while” condition.

Main.cpp:

• Include required header files
• Inside “main ()” function,
  • Create a template for queue.
  • Create an object for the class
  • Declare variables “choice”, “serial”, and “mDate”.
  • Print the menu to the user till the user enters corresponding menu number using “while” condition.
  • Switch to case.
    • Case1:
      • Get the serial number and manufacturing date from the user.
      • Push the object into the queue using the function “enqueue ()”.
    • Case 2:
      • Check if the queue is empty using “isEmpty ()” function.
      • If the queue is not empty,
        • Dequeue an element which is inserted first.
        • Print the serial number and date that has been removed.
    • Case 3:
      • Exit