class constructor

This update is for the class constructor

src/main/java/edu/ntnu/idi/idatt2003/g40/mappe/Share.java

@@ -1,5 +1,15 @@
 package edu.ntnu.idi.idatt2003.g40.mappe;
 
+import java.math.BigDecimal;
+
 public class Share {
-
+    private final Stock stock;
+    private final BigDecimal quantity;
+    private final BigDecimal purchasePrice;
+
+    public Share(Stock stock, BigDecimal quantity, BigDecimal purchasePrice) {
+        this.stock = stock;
+        this.quantity = quantity;
+        this.purchasePrice = purchasePrice;
+    }
 }