Fix: Changed indents to satisfy checkstyle. Also added symbol validat…

…ion (4 characters)

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

@@ -54,7 +54,7 @@ public List<Stock> getStocksFromStrings(final List<String> validStocks) {
           stocksFromFile.add(stockObject);
         }
       } catch (IllegalArgumentException e) {
-        System.err.println(s + " is not a valid stock! Skipping...");
+        System.err.println("(" + s + ") is not a valid stock! Skipping...");
       }
 
     });

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

@@ -1,5 +1,6 @@
 package edu.ntnu.idi.idatt2003.g40.mappe;
 
+import java.io.IOException;
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
@@ -8,57 +9,64 @@
  * Represents a stock listed on an exchange.
  */
 public class Stock {
-
-    private final String symbol;
-    private final String company;
-    private final List<BigDecimal> prices = new ArrayList<>();
 
-    /**
-     * Creates a new {@code Stock} with an initial sales price.
-     *
-     * @param symbol     the unique stock symbol
-     * @param company    the name of the company
-     * @param salesPrice the initial sales price of the stock
-     */
-    public Stock(String symbol, String company, BigDecimal salesPrice){
-        this.symbol = symbol;
-        this.company = company;
-        prices.add(salesPrice);
-    }
+  private final String symbol;
+  private final String company;
+  private final List<BigDecimal> prices = new ArrayList<>();
 
-    /**
-     * Returns the stock symbol.
-     *
-     * @return the stock symbol
-     */
-    public String getSymbol(){
-        return symbol;
-    }
+  /**
+   * Creates a new {@code Stock} with an initial sales price.
+   *
+   * @param symbol     the unique stock symbol
+   * @param company    the name of the company
+   * @param salesPrice the initial sales price of the stock
+   */
+  public Stock(final String symbol,
+               final String company,
+               final BigDecimal salesPrice) {
 
-    /**
-     * Returns the stock company.
-     *
-     * @return the stocks company
-     */
-    public String getCompany(){
-        return company;
+    if (symbol.length() != 4) {
+      throw new IllegalArgumentException(
+              "Stock's symbol must be 4 characters!");
     }
+    this.symbol = symbol;
+    this.company = company;
+    prices.add(salesPrice);
+  }
 
-    /**
-     * Returns the current sales price of the stock.
-     *
-     * @return the curret sales price
-     */
-    public BigDecimal getSalesPrice() {
-        return prices.getLast();
-    }
+  /**
+   * Returns the stock symbol.
+   *
+   * @return the stock symbol
+   */
+  public String getSymbol() {
+    return symbol;
+  }
 
-    /**
-     * Adds a new sales price to the price history.
-     *
-     * @param price the new sales price
-     */
-    public void addNewSalesPrice(BigDecimal price) {
-        prices.add(price);
-    }
+  /**
+   * Returns the stock company.
+   *
+   * @return the stocks company
+   */
+  public String getCompany() {
+    return company;
+  }
+
+  /**
+   * Returns the current sales price of the stock.
+   *
+   * @return the current sales price
+   */
+  public BigDecimal getSalesPrice() {
+    return prices.getLast();
+  }
+
+  /**
+   * Adds a new sales price to the price history.
+   *
+   * @param price the new sales price
+   */
+  public void addNewSalesPrice(final BigDecimal price) {
+    prices.add(price);
+  }
 }