Added Stock class

src/main/java/Stock.java

@@ -0,0 +1,33 @@
+import java.math.BigDecimal;
+import java.util.ArrayList;
+import java.util.List;
+
+public class Stock {
+
+    private final String symbol;
+    private final String company;
+    private final List<BigDecimal> prices;
+
+    public Stock(String symbol, String company, BigDecimal salesPrice) {
+        this.symbol = symbol;
+        this.company = company;
+        this.prices = new ArrayList<>();
+        this.prices.add(salesPrice);
+    }
+
+    public String getSymbol() {
+        return symbol;
+    }
+
+    public String getCompany() {
+        return company;
+    }
+
+    public BigDecimal getSalesPrice() {
+        return prices.get(prices.size() - 1);
+    }
+
+    public void addNewSalesPrice(BigDecimal price) {
+        prices.add(price);
+    }
+}