Question

You work at a soft drink distributorship that sells at most 100 different kinds of soft drinks. This program will process weekly transactions and allow for a report to be displayed that includes the soft-drink name, ID number, starting inventory, final inventory, and the number of transactions received.

There are two data files, data7.txt
You work at a soft drink distributorship that sells at most 100 different kinds of soft drinks. This program will process weekly transactions and allow for a report to be displayed that includes the soft-drink name, ID number, starting inventory, final inventory, and the number of transactions received.There are two data files, data7.txt View in a new window holds the transactions. Each transaction consists of the ID number followed by the number of cases purchased (positive integer), or the amount sold (negative integer). In the case of an invalid ID number, do not process the data (ignore it, no error message).Sample data7.txt:Coke 123 100 Pepsi345 50 CanadaDry 678 75 DrPepper444 120Sample data7trans.txt:34510 123-5 34510 678 8 44420 444 -20 44410 999 5 34510 123 -25The displayReport function displays the drink name, ID number, starting inventory, final inventory, and the number of transactions processed.For the sample data, the output of your program would be as follows:Soft drink ID number Starting Inventory Final Inventory# transactions Coke 123 100 702 Pepsi 34550 803 CanadaDry67875 831 DrPepper 444 1201303Write a SoftDrinkInventory class with the following functionality:public SoftDrinkInventory: Is a constructor that initializes arrays holding soft drink name, ID number, and starting inventory from data file. The array holding final inventory is set to the same values as the starting inventory and transaction counts array is initialized to zero (initialize described below is used for this).public processTransactions: Processes the transactions by correctly adjusting the final inventory and transaction counts arrays. Data for IDs which don't exist are not processed.public displayReport: Displays a report including soft drink name, ID number, starting inventory, final inventory, and number of transactions processed.private findID: Takes an ID number parameter and returns the position in the array where the soft drink with that ID is found. A -1 value is returned if the ID is not found.private initialize: Takes an int array parameter and initializes its array values to zero./** * This program tests the functionality of a the SoftDrinkInventory class. * A datafile containing initial data is used to construct a SoftDrink object. * Then transactions are processed where each transaction contains how * cases are bought or sold. A function displays a report of the drink name, * ID number, starting inventory, final inventory, and the number of * transactions processed. The largest and smallest transaction value * is displayed. */import java.util.Scanner; import java.io.FileInputStream; import java.io.FileNotFoundException;public class SoftDrinkTester { public static void main (String[] args) {Scanner inventoryFile = null; // inventory data fileScanner transFile = null;// transaction data file // open the inventory initialization filetry { inventoryFile = new Scanner(new FileInputStream("data7.txt"));}catch (FileNotFoundException e) { System.out.println("File not found or not opened."); System.exit(0);} // open the file containing the buy/sell transactionstry { }catch (FileNotFoundException e) { System.out.println("File not found or not opened."); System.exit(0);} // instantiate the soft drink distributorship object// and process the transactions by updating the inventory totals} }Preview the documentView in a new window consists of at most 100 lines where each line contains the soft drink name (string), ID number (string), and the starting inventory of cases (int).The file data7trans.txtPreview the documentView in a new window, which hold the initial soft drink information and transactions, respectively. The file data7.txtPreview the documentView in a new windowand data7trans.txt
and data7trans.txt, which hold the initial soft drink information and transactions, respectively. The file data7.txt
You work at a soft drink distributorship that sells at most 100 different kinds of soft drinks. This program will process weekly transactions and allow for a report to be displayed that includes the soft-drink name, ID number, starting inventory, final inventory, and the number of transactions received.There are two data files, data7.txt View in a new window holds the transactions. Each transaction consists of the ID number followed by the number of cases purchased (positive integer), or the amount sold (negative integer). In the case of an invalid ID number, do not process the data (ignore it, no error message).Sample data7.txt:Coke 123 100 Pepsi345 50 CanadaDry 678 75 DrPepper444 120Sample data7trans.txt:34510 123-5 34510 678 8 44420 444 -20 44410 999 5 34510 123 -25The displayReport function displays the drink name, ID number, starting inventory, final inventory, and the number of transactions processed.For the sample data, the output of your program would be as follows:Soft drink ID number Starting Inventory Final Inventory# transactions Coke 123 100 702 Pepsi 34550 803 CanadaDry67875 831 DrPepper 444 1201303Write a SoftDrinkInventory class with the following functionality:public SoftDrinkInventory: Is a constructor that initializes arrays holding soft drink name, ID number, and starting inventory from data file. The array holding final inventory is set to the same values as the starting inventory and transaction counts array is initialized to zero (initialize described below is used for this).public processTransactions: Processes the transactions by correctly adjusting the final inventory and transaction counts arrays. Data for IDs which don't exist are not processed.public displayReport: Displays a report including soft drink name, ID number, starting inventory, final inventory, and number of transactions processed.private findID: Takes an ID number parameter and returns the position in the array where the soft drink with that ID is found. A -1 value is returned if the ID is not found.private initialize: Takes an int array parameter and initializes its array values to zero./** * This program tests the functionality of a the SoftDrinkInventory class. * A datafile containing initial data is used to construct a SoftDrink object. * Then transactions are processed where each transaction contains how * cases are bought or sold. A function displays a report of the drink name, * ID number, starting inventory, final inventory, and the number of * transactions processed. The largest and smallest transaction value * is displayed. */import java.util.Scanner; import java.io.FileInputStream; import java.io.FileNotFoundException;public class SoftDrinkTester { public static void main (String[] args) {Scanner inventoryFile = null; // inventory data fileScanner transFile = null;// transaction data file // open the inventory initialization filetry { inventoryFile = new Scanner(new FileInputStream("data7.txt"));}catch (FileNotFoundException e) { System.out.println("File not found or not opened."); System.exit(0);} // open the file containing the buy/sell transactionstry { }catch (FileNotFoundException e) { System.out.println("File not found or not opened."); System.exit(0);} // instantiate the soft drink distributorship object// and process the transactions by updating the inventory totals} }Preview the documentView in a new window consists of at most 100 lines where each line contains the soft drink name (string), ID number (string), and the starting inventory of cases (int).The file data7trans.txtPreview the documentView in a new window, which hold the initial soft drink information and transactions, respectively. The file data7.txtPreview the documentView in a new windowand data7trans.txt
consists of at most 100 lines where each line contains the soft drink name (string), ID number (string), and the starting inventory of cases (int).

The file data7trans.txt holds the transactions. Each transaction consists of the ID number followed by the number of cases purchased (positive integer), or the amount sold (negative integer). In the case of an invalid ID number, do not process the data (ignore it, no error message).

Sample data7.txt:

Coke       123 100 Pepsi      345 50 CanadaDry  678 75 DrPepper   444 120  

Sample data7trans.txt:

345   10 123   -5 345   10 678    8 444   20 444  -20 444   10 999    5 345   10 123  -25  

The displayReport function displays the drink name, ID number, starting inventory, final inventory, and the number of transactions processed.

For the sample data, the output of your program would be as follows:

Soft drink    ID number  Starting Inventory    Final Inventory   # transactions Coke              123           100                   70                  2 Pepsi             345            50                   80                  3 CanadaDry         678            75                   83                  1 DrPepper          444           120                  130                  3 

Write a SoftDrinkInventory class with the following functionality:

public SoftDrinkInventory: Is a constructor that initializes arrays holding soft drink name, ID number, and starting inventory from data file. The array holding final inventory is set to the same values as the starting inventory and transaction counts array is initialized to zero (initialize described below is used for this).

public processTransactions: Processes the transactions by correctly adjusting the final inventory and transaction counts arrays. Data for IDs which don't exist are not processed.

public displayReport: Displays a report including soft drink name, ID number, starting inventory, final inventory, and number of transactions processed.

private findID: Takes an ID number parameter and returns the position in the array where the soft drink with that ID is found. A -1 value is returned if the ID is not found.

private initialize: Takes an int array parameter and initializes its array values to zero.

/**  * This program tests the functionality of a the SoftDrinkInventory class.  * A datafile containing initial data is used to construct a SoftDrink object.  * Then transactions are processed where each transaction contains how  * cases are bought or sold. A function displays a report of the drink name,  * ID number, starting inventory, final inventory, and the number of  * transactions processed. The largest and smallest transaction value  * is displayed.  */  import java.util.Scanner; import java.io.FileInputStream; import java.io.FileNotFoundException;  public class SoftDrinkTester {      public static void main (String[] args) {         Scanner inventoryFile = null;              // inventory data file         Scanner transFile = null;                  // transaction data file          // open the inventory initialization file          try {             inventoryFile = new Scanner(new FileInputStream("data7.txt"));         }         catch (FileNotFoundException e) {             System.out.println("File not found or not opened.");             System.exit(0);         }          // open the file containing the buy/sell transactions          try {                       }         catch (FileNotFoundException e) {             System.out.println("File not found or not opened.");             System.exit(0);         }          // instantiate the soft drink distributorship object          // and process the transactions by updating the inventory totals                } } 

Answer 1

SoftDrinkInventory.java

import java.util.Scanner;

public class SoftDrinkInventory {
   private String names[];
   private int ids[];
   private int startingInventorys[];
   private int finalInventorys[];
   private int transactions[];
   private int total = 0;

   public SoftDrinkInventory(Scanner in) {
       names = new String[100];
       ids = new int[100];
       startingInventorys = new int[100];
       finalInventorys = new int[100];
       transactions = new int[100];
       initialize(ids);
       initialize(startingInventorys);
       initialize(finalInventorys);
       initialize(transactions);
       String temp[];
       while (in.hasNextLine()) {
           names[total] = in.next();
           ids[total] = in.nextInt();
           int val = in.nextInt();
           startingInventorys[total] = val;
           finalInventorys[total] = val;
           total++;
       }
   }

   public void processTransactions(int id, int items) {
       int ind = findID(id);
       if (ind != -1) {
           transactions[ind]++;
           finalInventorys[ind] += items;
       }
   }

   public void displayReport() {
       System.out
               .println("Soft Drink\tID Number\tStarting Inventory\tFinal Inventory\t# transactions");
       for (int i = 0; i < total; ++i) {
           if (names[i].length() < 6) {
               System.out.printf("%s\t\t%d\t\t%d\t\t\t%d\t\t\t%d\n", names[i],
                       ids[i], startingInventorys[i], finalInventorys[i],
                       transactions[i]);
           }
           else{
               System.out.printf("%s\t%d\t\t%d\t\t\t%d\t\t\t%d\n", names[i],
                       ids[i], startingInventorys[i], finalInventorys[i],
                       transactions[i]);
           }
       }
   }

   private int findID(int id) {
       for (int i = 0; i < total; ++i) {
           if (ids[i] == id) {
               return i;
           }
       }
       return -1;
   }

   private void initialize(int arr[]) {
       for (int i = 0; i < arr.length; ++i) {
           arr[i] = 0;
       }
   }
}

__________________________________________________________________________________

$\underline{SoftDrinkTester.java}$

import java.util.Scanner;
import java.io.FileInputStream;
import java.io.FileNotFoundException;

public class SoftDrinkTester {

    public static void main (String[] args) {
        Scanner inventoryFile = null;              // inventory data file
        Scanner transFile = null;                  // transaction data file
        SoftDrinkInventory s = null;
        // open the inventory initialization file
        try {
            inventoryFile = new Scanner(new FileInputStream("data7.txt"));
            s = new SoftDrinkInventory(inventoryFile);
        }
        catch (FileNotFoundException e) {
            System.out.println("File not found or not opened.");
            System.exit(0);
        }

        // open the file containing the buy/sell transactions
        try {
            transFile = new Scanner(new FileInputStream("data7trans.txt"));
            while(transFile.hasNextLine()){
               int id = transFile.nextInt();
               int items = transFile.nextInt();
               s.processTransactions(id, items);
            }
            s.displayReport();
        }
        catch (FileNotFoundException e) {
            System.out.println("File not found or not opened.");
            System.exit(0);
        }

    }
}