company.java

it is an inventory system which is used to maintain all the accounts of stores

// Code Written by Kevin Dela Rosa, Vinney LaPenna, and John Sameulson		June 14, 2004

/***********************************************************************************/
/**                                                                               **/
/**                      Inventory Deluxe v 1.03                                  **/ 
/**                      Company Class                                            **/ 
/**                                                                               **/
/***********************************************************************************/

// Company class
// Workload of our program
// Computes all of the necessary mathematical and manipulative functions
import java.io.*;
import java.text.*;
import java.util.*;


class Company
{
	private String fileName;
	// Stores the name of the file for save purposes
	
	private ArrayList currentItems;
	// Stores the inventory; collection of Item objects
	
	private double currentFunds;
	// Represents how much money the company has to spend on inventory
	
	public Company() throws IOException
	// Default constructor; loads all the inventory data from the file
	{
		currentItems = new ArrayList();
		fileName = "inventory.dat";
		BufferedReader cin = new BufferedReader(new FileReader(fileName));
		// For reading from the file
		currentFunds = Double.parseDouble(cin.readLine());
		String name;
		String description;
		String id;
		int amt;
		double sale;
		double order;
		while((name = cin.readLine()) != null)
		{
			description = cin.readLine();
			StringTokenizer st = new StringTokenizer(cin.readLine());
			id = st.nextToken();
			amt = Integer.parseInt(st.nextToken());
			sale = Double.parseDouble(st.nextToken());
			order = Double.parseDouble(st.nextToken());
			Item i = new Item(name, description,id,amt,sale,order);
			currentItems.add(i);
			// Adds the new Item to the list
		}
		cin.close();
	}
	
	public void openFile(String fileName) throws IOException
	{
		currentItems.clear();
		BufferedReader cin = new BufferedReader(new FileReader(fileName));
		// For reading from the file
		currentFunds = Double.parseDouble(cin.readLine());
		String name;
		String description;
		String id;
		int amt;
		double sale;
		double order;
		while((name = cin.readLine()) != null)
		{
			description = cin.readLine();
			StringTokenizer st = new StringTokenizer(cin.readLine());
			id = st.nextToken();
			amt = Integer.parseInt(st.nextToken());
			sale = Double.parseDouble(st.nextToken());
			order = Double.parseDouble(st.nextToken());
			Item i = new Item(name, description,id,amt,sale,order);
			currentItems.add(i);
			// Adds the new Item to the list
		}
		this.fileName = fileName;
		cin.close();
	}
	
	public void sortByName()
	 // Implements an insertion/selection sort on currentItems, sorting by item name 
	{
		ArrayList temp = new ArrayList(); // Empty ArrayList (for sorting)
		Item smallest; // Stores the smallest item (for sorting)
		Item go; // Temporary Item
		while(currentItems.size() > 0)
		{
			smallest = (Item) currentItems.get(0);
			for(int c = 0; c < currentItems.size(); c++)
			{
				go = (Item) currentItems.get(c);
				if(go.getName().toUpperCase().compareTo(
					smallest.getName().toUpperCase()) <= 0)
				{
					smallest = go;
				}
				
			}
			temp.add(smallest);
			currentItems.remove(smallest);
		}
		currentItems = temp;
	}
	
	public void sortById()
	 // Implements an insertion/selection sort on currentItems, sorting by ID number
	{
		ArrayList temp = new ArrayList(); // Empty ArrayList (for sorting)
		Item smallest; // Stores the smallest item (for sorting)
		Item go; // Temporary Item
		while(currentItems.size() > 0)
		{
			smallest = (Item) currentItems.get(0);
			for(int c = 0; c < currentItems.size(); c++)
			{
				go = (Item) currentItems.get(c);
				if(Integer.parseInt(go.getId()) <
					Integer.parseInt(smallest.getId()))
				{
					smallest = go;
				}
				
			}
			temp.add(smallest);
			currentItems.remove(smallest);
		}
		currentItems = temp;
	}
	
	
	public boolean newSales(String id, int amt)
	 // Checks to see if id is in currentItems
	 // If it is not, returns false
	 // If it is, it sells amt Items if there are enough Items
	 // If amount is insufficient, returns false
	 // If all conditions are met it sells amt of Item and returns true
	{
		boolean checkID = false; // Determines if id is in the list
		Item i = new Item(); 
		for(int c = 0; c < currentItems.size(); c++)
		{	
			if(id.equals(((Item) currentItems.get(c)).getId()))
			{
				checkID = true;
				i = (Item) currentItems.get(c);
			}
		}
		if(checkID)
		{
			if(amt > i.getAmount())
				return false; 
			else
			{
				currentFunds += i.sellItem(amt);
				return true;
			}
		}
		return false;
	}
	
	public boolean newOrders(String id, int amt)
	 //Checks to see if id is in currentItems
	 // If it is not, returns false
	 // If it is, it orders the passed amount if currentFunds is sufficient
	 // If money is insufficient, returns false
	 // If all conditions are met it orders amt of Item and returns true
	{
		boolean checkID = false;
		Item i = new Item(); 
		for(int c = 0; c < currentItems.size(); c++)
		{	
			if(id.equals(((Item) currentItems.get(c)).getId()))
			{
				checkID = true;
				i = (Item) currentItems.get(c);
			}
		}
		if(checkID)
		{
			if(currentFunds < i.getOrderPrice(amt))
			  return false; 
			else
			{
				currentFunds -= i.orderItem(amt);
				return true;
			}
		}
		return false;
	}
	
	public boolean liquidateItem(String id)
	 //Sells all of one item at order price and adds the money to currentFunds
	 //returns true if successful, and false if id is not an Item
	{
		Item i = new Item();
		Item go = new Item();
		boolean isInList = false;
		for(int c = 0; c < currentItems.size(); c++)
		{
			go = ((Item)currentItems.get(c));
			if(id.compareTo(go.getId()) == 0)
			{
				i = go;
				isInList = true;;
			}
		}
		
		if(isInList)
		{
			currentFunds += i.liquidate();
			currentItems.remove(i);
		}
		return isInList;
		//returns true if you can liquidate
	}

	public boolean makeItem(String n, String d, String id, double s, double o, int a)
	 // If id is not a current id in currentItems, creates new item with passes data and returns true
	 // Otherwise returns false
	{
		boolean isInList = false;		
		for(int c = 0; c < currentItems.size(); c++)
		{
			String temp = ((Item) currentItems.get(c)).getId();
			if(id.equals(temp))
			{
				isInList = true;
			}
		}
		if(!isInList)
		{
			Item i = new Item(n,d,id,a,s,o);
			if(currentFunds < i.getOrderPrice(a))
			{
				isInList = true;
			}
			else
			{
				currentFunds -= a * o;
				currentItems.add(i);
			}
		}
		return !isInList;
		// returns false if it is in the list, or 
		// if Company does not have enough money
	}
	
	public void endProgram() throws IOException
	 // Saves the current data to the data file
	{
		BufferedWriter cout = new BufferedWriter(new FileWriter(fileName));
		String cf = new Double(currentFunds).toString();
		cout.write(cf);
		cout.newLine();
		for(int c = 0; c < currentItems.size(); c++)
		{
			Item i = ((Item) currentItems.get(c));
			cout.write(i.getName());
			cout.newLine();
			cout.write(i.getDescription());
			cout.newLine();
			cout.write(i.getId() + " " + i.getAmount() + " " + i.getSalesPrice());
			cout.write(" " + i.getOrderPrice());
			cout.newLine();
			
		}
		cout.close();
	}

	public boolean changeSalesPrice(String id, double np)
	 //If the passed id is in the list, the Item's sales price is set to np and returns true
	 //Otherwise, returns false
	{
		boolean checkID = false;
		Item i = new Item();
		for(int c = 0; c < currentItems.size(); c++)
		{	
			if(id.equals(((Item) currentItems.get(c)).getId()))
			{
				checkID = true;
				i = (Item) currentItems.get(c);
			}
		}
		if(checkID)
		{
			i.setSalesPrice(np);
			return true;
		}
		return false;
		//returns true if it succeeded, false if id not in list
		//Please protect the double for negativity and zero
	}
	
	public boolean changeOrderPrice(String id, double np)
	 //If the passed id is in the list, the Item's order price is set to np and returns true
	 //Otherwise, returns false
	{
		boolean checkID = false;
		Item i = new Item();
		for(int c = 0; c < currentItems.size(); c++)
		{	
			if(id.equals(((Item) currentItems.get(c)).getId()))
			{
				checkID = true;
				i = (Item) currentItems.get(c);
			}
		}
		if(checkID)
		{
			i.setOrderPrice(np);
			return true;
		}
		return false;
		//returns true if it succeeded, false if id not in list
		//Please protect the double for negativity and zero
	}
	
	public ArrayList getItems()
	//Returns the current list of items
	{
		return currentItems;
	}
	
	public double getFunds()
	//Returns the current amount of money being used for inventory
	{
		return currentFunds;
	}
	
	public int getNumItems()
	 //returns the current number of Items in currentItems
	{
		return currentItems.size();
	}
	
	public void setFunds(double f)
	// Sets the company's funds to f
	{
		currentFunds = f;
	}
	
	public void setFileName(String name)
	{
		fileName = name;
	}
	
}