Help I am a student and have no idea how to sort this program by Product

Question

First class:
// CheckPoint: Inventory Program Part 1
// Display product information
public class Product1 //declare class
//declare instance variables
private int productNumber,
inStock;
private String productName; // List of instance variables unique to object
private double unitPrice;
//constructor to handle no input and set defaults
public Product1()
//constructor to handle input parameters
public Product1( int number, String name, int stock, double perPrice )
productNumber = number;
productName = name;
inStock = stock;
unitPrice = perPrice;
public void setProductNumber( int number ) //stores product number
productNumber = number;
public void setProductName( String name ) //stores product name
productName = name;
public void setInStock( int stock ) //stores amount of product in stock
inStock = stock;
public void setUnitPrice( double perPrice ) //stores the unit price of product
unitPrice = perPrice;
public int getProductNumber() //allows a call to retrieve product number
return productNumber;
public String getProductName() //allows a call to retrieve the product name
return productName;
public int getInStock() //allows a call to retrieve stock info
return inStock;
public double getUnitPrice() //allows a call to retrieve unit price
return unitPrice;
public double getInventoryValue()
return ( (double)inStock * unitPrice );
public String toString()
return productName + " - " + unitPrice;
Second Class:
import java.text.DecimalFormat;
public class Inventory1
private final int maxInventory = 30;
private Product1 items[] = new Product1[ maxInventory ];
DecimalFormat formatter = new DecimalFormat( "$##,###.00" );
public void addProduct( Product1 item )
for ( int i = 0; i < maxInventory; i++ )
if (items[i] == null)
items[i] = item;
return;
public double getTotalInventoryValue()
double sum = 0.0;
for ( Product1 item : items )
if ( item != null )
sum += item.getInventoryValue();
return sum;
public void displayInventory()
boolean hasItems = false;
for ( Product1 item : items )
if ( item != null)
hasItems = true;
System.out.printf( "%8d%12s%11d%13.2f%14.2f", item.getProductNumber() , item.getProductName(), item.getInStock(), item.getUnitPrice(), item.getInventoryValue() );
System.out.println( "" ); // display space
System.out.println("");
Part 3:
import java.text.DecimalFormat;
public class InventoryTest1
static DecimalFormat formatter = new DecimalFormat( "$##,###.00" );
public static void main( String args[] )
Product1 item1 = new Product1( 001, "Staples", 5, 2.99 );
Product1 item2 = new Product1( 002, "Books", 10, 15.00 );
Product1 item3 = new Product1( 003, "Printers", 20, 55.00 );
Inventory1 myInventory1 = new Inventory1();
System.out.println("");
System.out.printf( "%s%12s%11s%13s%14s", "Product#", "Name", "In Stock", "Unit Price", "Stock Value" );
System.out.println("");
System.out.println("");
myInventory1.displayInventory();
myInventory1.addProduct( item1 );
myInventory1.addProduct( item2 );
myInventory1.addProduct( item3 );
myInventory1.displayInventory();
System.out.println( "" ); // display space
System.out.println("");
System.out.println( "Total value of inventory is: " );
System.out.println ( formatter.format(myInventory1.getTotalInventoryValue() ) );
I have no idea where to put the sort statement and how to implement it.

Answer 1

Sorry about that. Before i proceed with the code I will say that I need help trying to determine where to put a sort statement and what sort statement should I use. I have three classes and have no idea how to sort the items by Product name. For instance, I have staples, books, and printers in my code. How do I get it to display these names and all of the corresponding information in alphabetical order. So with that said, here is the code.
First program:
// CheckPoint: Inventory Program Part 1
// Display product information
public class Product1 //declare class
//declare instance variables
private int productNumber,
inStock;
private String productName; // List of instance variables unique to object
private double unitPrice;
//constructor to handle no input and set defaults
public Product1()
//constructor to handle input parameters
public Product1( int number, String name, int stock, double perPrice )
productNumber = number;
productName = name;
inStock = stock;
unitPrice = perPrice;
public void setProductNumber( int number ) //stores product number
productNumber = number;
public void setProductName( String name ) //stores product name
productName = name;
public void setInStock( int stock ) //stores amount of product in stock
inStock = stock;
public void setUnitPrice( double perPrice ) //stores the unit price of product
unitPrice = perPrice;
public int getProductNumber() //allows a call to retrieve product number
return productNumber;
public String getProductName() //allows a call to retrieve the product name
return productName;
public int getInStock() //allows a call to retrieve stock info
return inStock;
public double getUnitPrice() //allows a call to retrieve unit price
return unitPrice;
public double getInventoryValue()
return ( (double)inStock * unitPrice );
}