Completed the basic Algorithm

StockMarket/.gitignore

 /StockMarket.class
 /Jtest.class
+/Order.class
+/StockMarket$Order.class

StockMarket/Jtest.java

@@ -8,9 +8,7 @@ class Jtest {
 
 	@Test
 	void test() {
-		StockMarket obj = new StockMarket();
-		int res =obj.Add(100, 200);
-		assertEquals(300, res);
+		
 	}
 
 }

StockMarket/StockMarket.java

-
+import java.util.*;
+import java.io.*;
 public class StockMarket 
 {
-	public int Add(int a, int b)
+	
+	ArrayList<Order> pending_list;
+	public static void main(String[] args) throws Exception
 	{
-		return a+b;
+		int count=1;
+		BufferedReader buf = new BufferedReader(new InputStreamReader(System.in));
+		StockMarket stock_market = new StockMarket();
+		stock_market.pending_list = new ArrayList<Order>();
+		while(true)
+		{
+			System.out.println("Press 1 to Add an Order");
+			System.out.println("Press 2 to View the pending list");
+			System.out.println("Press 3 to Exit");
+			
+			String s=buf.readLine();
+			if(s.equals("1"))
+			{
+				boolean is_trade=stock_market.AddOrder(count,buf);
+				if(is_trade)
+						System.out.println("Trade Made\n");
+				else
+						System.out.println("Added to Pending List\n");
+				count++;
+			}
+			else if(s.equals("2"))
+			{
+				stock_market.ViewList();
+			}
+			else
+			{
+				System.exit(0);
+			}
+		}
 	}
-
-	public static void main(String[] args) 
+	void ViewList()
 	{
-		System.out.println("Here");
+		if(pending_list.size() == 0)
+		{
+			System.out.println("List is empty\n");
+		}
+		else
+		{
+			for(int i=0;i<pending_list.size();i++)
+			{
+				System.out.println(pending_list.get(i).toString());
+				System.out.println("");
+			}
+			
+		}
+		
 	}
-
+	boolean AddOrder(int count,BufferedReader buf) throws Exception
+	{
+		boolean trade=false;
+		System.out.println("Enter your Customer ID");
+		int cid=Integer.parseInt(buf.readLine());
+		System.out.println("Enter the Stock Name");
+		String sname=(buf.readLine());
+		sname=sname.toLowerCase();
+		System.out.println("Enter your Trade Type(Buy/Sell)");
+		String type = buf.readLine();
+		type= type.toLowerCase();
+		while(!(type.equals("buy") || type.equals("sell")))
+		{
+			System.out.println("Please Enter Buy or Sell");
+			type = buf.readLine();
+			type= type.toLowerCase();
+		}
+		System.out.println("Enter your Price");
+		int price = Integer.parseInt(buf.readLine());
+		System.out.println("Enter your Quantity");
+		int quant = Integer.parseInt(buf.readLine());
+		Order new_order= new Order(count,cid,sname,type,price,quant);
+		boolean ans=MatchOrder(new_order);
+		if(ans == true)
+				trade=true;
+		return trade;
+	}
+	boolean MatchOrder(Order new_order)
+	{
+		boolean did_match=false;
+		if(new_order.getTradeType().equals("buy"))
+		{
+			for(int i=0;i<pending_list.size();i++)
+			{
+				Order order = pending_list.get(i);
+				if(order.getCustID() != new_order.getCustID() && order.getTradeType().equals("sell") && new_order.getStockName().equals(order.getStockName()) &&order.getPrice() <= new_order.getPrice() )
+				{
+					if(order.getQuantity() > new_order.getQuantity())
+					{
+						order.setQuantity(order.getQuantity()-new_order.getQuantity());
+						did_match=true;
+						break;
+					}
+					else if(order.getQuantity() == new_order.getQuantity())
+					{
+						pending_list.remove(i);
+						did_match=true;
+						break;
+					}
+					else
+					{
+						pending_list.remove(i);
+						new_order.setQuantity(new_order.getQuantity()-order.getQuantity());
+						i--;
+					}
+				}
+			}
+		}
+		else 
+		{
+			for(int i=0;i<pending_list.size();i++)
+			{
+				Order order = pending_list.get(i);
+				if(order.getCustID() != new_order.getCustID() && order.getTradeType().equals("buy")&& new_order.getStockName().equals(order.getStockName()) && order.getPrice() >= new_order.getPrice() )
+				{
+					if(order.getQuantity() > new_order.getQuantity())
+					{
+						order.setQuantity(order.getQuantity()-new_order.getQuantity());
+						did_match=true;
+						break;
+					}
+					else if(order.getQuantity() == new_order.getQuantity())
+					{
+						pending_list.remove(i);
+						did_match=true;
+						break;
+					}
+					else
+					{
+						pending_list.remove(i);
+						new_order.setQuantity(new_order.getQuantity()-order.getQuantity());
+						i--;
+					}
+				}
+			}
+		}
+		if(did_match == false)
+		{
+			pending_list.add(new_order);
+		}
+		return did_match;
+	}
+}
+class Order
+{
+	int order_ts; // Timestamp
+	int cust_id; // Customer Id
+	String stock_name; //  Stock ID
+	String trade_type; // B for Buy, S for Sell
+	int price;// The price at which the trade should proceed
+	int quantity; // How many stocks to buy or sell
+	public Order(int ts,int cid,String sid,String type,int cost,int quant)
+	{
+		this.order_ts=ts;
+		this.cust_id=cid;
+		this.stock_name=sid;
+		this.trade_type=type;
+		this.price=cost;
+		this.quantity=quant;
+		
+		
+	}
+	
+	public int getOrderTS()
+	{
+		return this.order_ts;
+		
+	}
+	public int getCustID()
+	{
+		return this.cust_id;
+		
+	}
+	public String getStockName()
+	{
+		return this.stock_name;
+		
+	}
+	public String getTradeType()
+	{
+		return this.trade_type;
+		
+	}
+	public int getPrice()
+	{
+		return this.price;
+		
+	}
+	public int getQuantity()
+	{
+		return this.quantity;
+		
+	}
+	public void setPrice(int nprice)
+	{
+		 this.price=nprice;
+		
+	}
+	public void setQuantity(int nquantity)
+	{
+		this.quantity=nquantity;
+		
+	}
+	
+	public String toString()
+	{
+		String str="";
+		str=order_ts+","+cust_id+","+stock_name+","+trade_type+","+price+","+quantity;
+		return str;
+	}
+	
+	
+	
 }
+