Answer: Note: programming specifications and the printing statements are provided in the question itself Program code: import java.util.*; import java.io.*; //Implementing Projecto2 class public class Project02 { //begins main program for the class public static void main(String[] args) { //creating the Scanner object Scanner keyboards = new Scanner(System.in); //getting file name as input System.out.print(\"Enter an inventory filename: \"); String fnames = keyboards.nextLine(); //Implementing the product array list ArrayList products1 = loadProductsS(fnames); //calling the below functions generateSummaryReportGen(products1); highestAvgRatingCalc(products1); lowestAvgRating(products1); largestTotalDollarAmount(products1); smallestTotalDollarAmount(products1); } //function definition for the class generateSummaryReportGen public static void generateSummaryReportGen (ArrayList Products11) { int counters = 0; System.out.println(\"Product Inventory Summary Report\"); System.out.println(\"----------------------------------------------------------------------------------\"); System.out.println(); System.out.printf(\"%-33s%-10s%-6s%-7s%-7s%-7s%-7s\", \"Product Name\", \"I Code\", \"Type\", \"Rating\", \"# Rat.\", \"Quant.\", \"Price\"); System.out.println(); System.out.printf(\"%-33s%-10s%-6s%-7s%-7s%-7s%-7s\", \"-------------------------------\", \"---- -----\", \"----\", \"------\", \"------\", \"------\", \"------\"); System.out.println(); while(counters < Products11.size()) { System.out.printf(\"%-33s%-10s%-6s%-7s%6s%7s%7s\", Products11.get(counters).getName(), Products11.get(counters).getInventoryCode(), Products11.get(counters).getType(), Products11.get(counters).getAvgUserRating(), Products11.get(counters).getUserRatingCount(), Products11.get(counters).getQuantity(), Products11.get(counters).getPrice()); System.out.println(); counters++; } System.out.println(\"----------------------------------------------------------------------------------\"); System.out.println(\"Total products in the database: \" + Products11.size()); } //function definition for the class loadProductsS public static ArrayList loadProductsS(String fnames) { //declares variables int a = 0; Integer b = 0; //creates array list objects ArrayList products11 = new ArrayList(); try { Scanner inFiles = new Scanner(new File(fnames)); while (inFiles.hasNext()) { int counters = 0; String name = inFiles.nextLine(); String code = inFiles.nextLine(); int quantity = inFiles.nextInt(); double price = inFiles.nextDouble(); String type = inFiles.next(); Product productObjectS = new Product(name, code, quantity, price, type); while(inFiles.hasNextInt() && counters==0) { a = inFiles.nextInt(); if(a != -1) { b = new Integer(a); productObjectS.addUserRating(b); } else { counters = 1; } } products11.add(productObjectS); if(inFiles.hasNext()) { inFiles.nextLine(); } } inFiles.close(); } catch (FileNotFoundException e) { System.out.println(\"ERROR: \" + e); } return products11; } //function defini.

1. Answer:
Note: programming specifications and the printing statements are provided in the question itself
Program code:
import java.util.*;
import java.io.*;
//Implementing Projecto2 class
public class Project02
{
//begins main program for the class
public static void main(String[] args)
{
//creating the Scanner object
Scanner keyboards = new Scanner(System.in);
//getting file name as input
System.out.print("Enter an inventory filename: ");
String fnames = keyboards.nextLine();
//Implementing the product array list
ArrayList products1 = loadProductsS(fnames);
//calling the below functions
generateSummaryReportGen(products1);
highestAvgRatingCalc(products1);
lowestAvgRating(products1);
largestTotalDollarAmount(products1);
smallestTotalDollarAmount(products1);
}
//function definition for the class generateSummaryReportGen
public static void generateSummaryReportGen (ArrayList Products11)
{
int counters = 0;
System.out.println("Product Inventory Summary Report");
System.out.println("----------------------------------------------------------------------------------");
System.out.println();
System.out.printf("%-33s%-10s%-6s%-7s%-7s%-7s%-7s", "Product Name", "I Code",
"Type", "Rating", "# Rat.", "Quant.", "Price");
System.out.println();

2. System.out.printf("%-33s%-10s%-6s%-7s%-7s%-7s%-7s", "-------------------------------", "----
-----", "----", "------", "------", "------", "------");
System.out.println();
while(counters < Products11.size())
{
System.out.printf("%-33s%-10s%-6s%-7s%6s%7s%7s", Products11.get(counters).getName(),
Products11.get(counters).getInventoryCode(), Products11.get(counters).getType(),
Products11.get(counters).getAvgUserRating(), Products11.get(counters).getUserRatingCount(),
Products11.get(counters).getQuantity(), Products11.get(counters).getPrice());
System.out.println();
counters++;
}
System.out.println("----------------------------------------------------------------------------------");
System.out.println("Total products in the database: " + Products11.size());
}
//function definition for the class loadProductsS
public static ArrayList loadProductsS(String fnames)
{
//declares variables
int a = 0;
Integer b = 0;
//creates array list objects
ArrayList products11 = new ArrayList();
try
{
Scanner inFiles = new Scanner(new File(fnames));
while (inFiles.hasNext())
{
int counters = 0;
String name = inFiles.nextLine();
String code = inFiles.nextLine();
int quantity = inFiles.nextInt();
double price = inFiles.nextDouble();
String type = inFiles.next();
Product productObjectS = new Product(name, code, quantity, price, type);
while(inFiles.hasNextInt() && counters==0)

3. {
a = inFiles.nextInt();
if(a != -1)
{
b = new Integer(a);
productObjectS.addUserRating(b);
}
else
{
counters = 1;
}
}
products11.add(productObjectS);
if(inFiles.hasNext())
{
inFiles.nextLine();
}
}
inFiles.close();
}
catch (FileNotFoundException e) {
System.out.println("ERROR: " + e);
}
return products11;
}
//function definition for the class void highestAvgRatingCalc
public static void highestAvgRatingCalc(ArrayList products11)
{
//declares variables
int counters = 0;
int a = 1;
//checks the counters product size
while (counters <= products11.size()-1)
{
if(products11.get(counters).getAvgUserRating().length() >

4. products11.get(a).getAvgUserRating().length())
{
a = counters;
}
else
{
}
counters++;
}
System.out.println("Highest Average User Rating In Stock: " + products11.get(a).getName() +
" ("+products11.get(a).getAvgUserRating() + ")");
}
//function definiton for the lowestAvgRating()
public static void lowestAvgRating(ArrayList products11)
{
//declares variables
int counters = 0;
int a = 1;
while (counters <= products11.size()-1)
{
if(products11.get(counters).getAvgUserRating().length() products11)
{
int counters = 0;
int a = 1;
while (counters <= products11.size()-1){
if((products11.get(counters).getPrice())*(products11.get(counters).getQuantity()) >
((products11.get(a).getPrice())*(products11.get(a).getQuantity())))
{
a=counters;
}
else{
}
counters++;
}
System.out.println("Item With The Largest Total Dollar Amount In Inventory: " +

5. products11.get(a).getName() + " ($" +
((products11.get(a).getPrice())*(products11.get(a).getQuantity())) + ")");
}
//function definition for smallestTotalDollarAmount
public static void smallestTotalDollarAmount(ArrayList products11)
{
int counters = 0;
int a = 1;
while (counters <= products11.size()-1)
{
if((products11.get(counters).getPrice())*(products11.get(counters).getQuantity()) <
((products11.get(a).getPrice())*(products11.get(a).getQuantity())))
{
a=counters;
}
else
{
}
counters++;
}
System.out.println("Item With The Smallest Total Dollar Amount In Inventory: " +
products11.get(a).getName() + " ($" +
((products11.get(a).getPrice())*(products11.get(a).getQuantity())) + ")");
}
}
Sample Output:
C:jdk1.6bin>javac Product.java
C:jdk1.6bin>javac Project02.java
C:jdk1.6bin>java Project02
Enter an inventory filename: input.txt
Product Inventory Summary Report
--------------------------------------------------------------------------------
--
Product Name I Code Type Rating # Rat. Quant. Price
------------------------------- --------- ---- ------ ------ ------ ------
The Shawshank Redemption C0000001 DVD *** 4 100 19.95

6. The Dark Knight C0000003 DVD *** 3 50 19.95
Casablanca C0000007 DVD **** 4 137 9.95
The Girl With The Dragon Tattoo C0000015 Book *** 3 150 14.95
Vertigo C0000023 DVD **** 6 55 9.95
A Game of Thrones C0000019 Book 0 100 8.95
--------------------------------------------------------------------------------
--
Total products in the database: 6
Highest Average User Rating In Stock: Casablanca (****)
Lowest Average User Rating In Stock: A Game of Thrones ()
Item With The Largest Total Dollar Amount In Inventory: The Girl With The Dragon
Tattoo ($2242.5)
Item With The Smallest Total Dollar Amount In Inventory: Vertigo ($547.25)
C:jdk1.6bin>javac Project02.java
Solution
Answer:
Note: programming specifications and the printing statements are provided in the question itself
Program code:
import java.util.*;
import java.io.*;
//Implementing Projecto2 class
public class Project02
{
//begins main program for the class
public static void main(String[] args)
{
//creating the Scanner object
Scanner keyboards = new Scanner(System.in);
//getting file name as input
System.out.print("Enter an inventory filename: ");
String fnames = keyboards.nextLine();
//Implementing the product array list
ArrayList products1 = loadProductsS(fnames);
//calling the below functions

7. generateSummaryReportGen(products1);
highestAvgRatingCalc(products1);
lowestAvgRating(products1);
largestTotalDollarAmount(products1);
smallestTotalDollarAmount(products1);
}
//function definition for the class generateSummaryReportGen
public static void generateSummaryReportGen (ArrayList Products11)
{
int counters = 0;
System.out.println("Product Inventory Summary Report");
System.out.println("----------------------------------------------------------------------------------");
System.out.println();
System.out.printf("%-33s%-10s%-6s%-7s%-7s%-7s%-7s", "Product Name", "I Code",
"Type", "Rating", "# Rat.", "Quant.", "Price");
System.out.println();
System.out.printf("%-33s%-10s%-6s%-7s%-7s%-7s%-7s", "-------------------------------", "----
-----", "----", "------", "------", "------", "------");
System.out.println();
while(counters < Products11.size())
{
System.out.printf("%-33s%-10s%-6s%-7s%6s%7s%7s", Products11.get(counters).getName(),
Products11.get(counters).getInventoryCode(), Products11.get(counters).getType(),
Products11.get(counters).getAvgUserRating(), Products11.get(counters).getUserRatingCount(),
Products11.get(counters).getQuantity(), Products11.get(counters).getPrice());
System.out.println();
counters++;
}
System.out.println("----------------------------------------------------------------------------------");
System.out.println("Total products in the database: " + Products11.size());
}
//function definition for the class loadProductsS
public static ArrayList loadProductsS(String fnames)
{
//declares variables
int a = 0;

8. Integer b = 0;
//creates array list objects
ArrayList products11 = new ArrayList();
try
{
Scanner inFiles = new Scanner(new File(fnames));
while (inFiles.hasNext())
{
int counters = 0;
String name = inFiles.nextLine();
String code = inFiles.nextLine();
int quantity = inFiles.nextInt();
double price = inFiles.nextDouble();
String type = inFiles.next();
Product productObjectS = new Product(name, code, quantity, price, type);
while(inFiles.hasNextInt() && counters==0)
{
a = inFiles.nextInt();
if(a != -1)
{
b = new Integer(a);
productObjectS.addUserRating(b);
}
else
{
counters = 1;
}
}
products11.add(productObjectS);
if(inFiles.hasNext())
{
inFiles.nextLine();
}
}
inFiles.close();
}

9. catch (FileNotFoundException e) {
System.out.println("ERROR: " + e);
}
return products11;
}
//function definition for the class void highestAvgRatingCalc
public static void highestAvgRatingCalc(ArrayList products11)
{
//declares variables
int counters = 0;
int a = 1;
//checks the counters product size
while (counters <= products11.size()-1)
{
if(products11.get(counters).getAvgUserRating().length() >
products11.get(a).getAvgUserRating().length())
{
a = counters;
}
else
{
}
counters++;
}
System.out.println("Highest Average User Rating In Stock: " + products11.get(a).getName() +
" ("+products11.get(a).getAvgUserRating() + ")");
}
//function definiton for the lowestAvgRating()
public static void lowestAvgRating(ArrayList products11)
{
//declares variables
int counters = 0;
int a = 1;
while (counters <= products11.size()-1)
{

10. if(products11.get(counters).getAvgUserRating().length() products11)
{
int counters = 0;
int a = 1;
while (counters <= products11.size()-1){
if((products11.get(counters).getPrice())*(products11.get(counters).getQuantity()) >
((products11.get(a).getPrice())*(products11.get(a).getQuantity())))
{
a=counters;
}
else{
}
counters++;
}
System.out.println("Item With The Largest Total Dollar Amount In Inventory: " +
products11.get(a).getName() + " ($" +
((products11.get(a).getPrice())*(products11.get(a).getQuantity())) + ")");
}
//function definition for smallestTotalDollarAmount
public static void smallestTotalDollarAmount(ArrayList products11)
{
int counters = 0;
int a = 1;
while (counters <= products11.size()-1)
{
if((products11.get(counters).getPrice())*(products11.get(counters).getQuantity()) <
((products11.get(a).getPrice())*(products11.get(a).getQuantity())))
{
a=counters;
}
else
{
}
counters++;
}

11. System.out.println("Item With The Smallest Total Dollar Amount In Inventory: " +
products11.get(a).getName() + " ($" +
((products11.get(a).getPrice())*(products11.get(a).getQuantity())) + ")");
}
}
Sample Output:
C:jdk1.6bin>javac Product.java
C:jdk1.6bin>javac Project02.java
C:jdk1.6bin>java Project02
Enter an inventory filename: input.txt
Product Inventory Summary Report
--------------------------------------------------------------------------------
--
Product Name I Code Type Rating # Rat. Quant. Price
------------------------------- --------- ---- ------ ------ ------ ------
The Shawshank Redemption C0000001 DVD *** 4 100 19.95
The Dark Knight C0000003 DVD *** 3 50 19.95
Casablanca C0000007 DVD **** 4 137 9.95
The Girl With The Dragon Tattoo C0000015 Book *** 3 150 14.95
Vertigo C0000023 DVD **** 6 55 9.95
A Game of Thrones C0000019 Book 0 100 8.95
--------------------------------------------------------------------------------
--
Total products in the database: 6
Highest Average User Rating In Stock: Casablanca (****)
Lowest Average User Rating In Stock: A Game of Thrones ()
Item With The Largest Total Dollar Amount In Inventory: The Girl With The Dragon
Tattoo ($2242.5)
Item With The Smallest Total Dollar Amount In Inventory: Vertigo ($547.25)
C:jdk1.6bin>javac Project02.java