Added Checkstyle to Share

src/main/java/Model/Share.java

@@ -1,44 +1,55 @@
 package Model;
+
 import java.math.BigDecimal;
 
+/**
+ * Share class.
+ */
 public class Share {
 
-    private final Stock stock;
-    private final BigDecimal quantity;
-    private final BigDecimal purchasePrice;
-
-    public Share(Stock stock, BigDecimal quantity, BigDecimal purchasePrice) {
-        if (stock == null) {
-            throw new IllegalArgumentException("Stock cannot be null");
-        }
-        if (quantity == null) {
-            throw new IllegalArgumentException("Quantity cannot be null");
-        }
-        if (quantity.compareTo(BigDecimal.ZERO) <= 0) {
-            throw new IllegalArgumentException("Quantity must be greater than zero");
-        }
-        if (purchasePrice == null) {
-            throw new IllegalArgumentException("Purchase price cannot be null");
-        }
-        if (purchasePrice.compareTo(BigDecimal.ZERO) < 0) {
-            throw new IllegalArgumentException("Purchase price cannot be negative");
-        }
-
-        this.stock = stock;
-        this.quantity = quantity;
-        this.purchasePrice = purchasePrice;
-    }
+  private final Stock stock;
+  private final BigDecimal quantity;
+  private final BigDecimal purchasePrice;
 
-    public Stock getStock() {
-        return stock;
+  /**
+   * Share method that has stock, quantity and purchaseprice.
+   *
+   * @param stock stock name
+   * @param quantity quantity of stock
+   * @param purchasePrice price of stock
+   */
+  public Share(Stock stock, BigDecimal quantity, BigDecimal purchasePrice) {
+    if (stock == null) {
+      throw new IllegalArgumentException("Stock cannot be null");
+    }      
+    if (quantity == null) {
+      throw new IllegalArgumentException("Quantity cannot be null");
+    }      
+    if (quantity.compareTo(BigDecimal.ZERO) <= 0) {
+      throw new IllegalArgumentException("Quantity must be greater than zero");
     }
-
-    public BigDecimal getQuantity() {
-        return quantity;
+    if (purchasePrice == null) {
+      throw new IllegalArgumentException("Purchase price cannot be null");
     }
-
-    public BigDecimal getPurchasePrice() {
-        return purchasePrice;
+    if (purchasePrice.compareTo(BigDecimal.ZERO) < 0) {
+      throw new IllegalArgumentException("Purchase price cannot be negative");
     }
+
+    this.stock = stock;
+    this.quantity = quantity;
+    this.purchasePrice = purchasePrice;
+  }
+
+  public Stock getStock() {
+    return stock;
+  }
+
+  public BigDecimal getQuantity() {
+    return quantity;
+  }
+
+  public BigDecimal getPurchasePrice() {
+    return purchasePrice;
+  }
 
 }