Account solution eclipse project zip file

Sd1/swd1.xml

@@ -1941,7 +1941,41 @@ public void writeSvg() {
 
               <para>We need the appropriate getter and setter methods:</para>
 
-              <programlisting/>
+              <programlisting>  /**
+   * @return
+   *     the current default interest rate value.
+   */
+  public static double getDefaultInterestRate() {
+    return defaultInterestRate;
+  }
+
+  /**
+   * This interest rate will be applied to negative balances. In contrast
+   * {{@link #setInterestRate(double)} will handle positive balance values.
+   * 
+   * @param defaultInterestRate
+   *                         the desired default interest rate value.
+   */
+  public static void setDefaultInterestRate(double defaultInterestRate) {
+    Account.defaultInterestRate = defaultInterestRate;
+  }</programlisting>
+
+              <para>The computed interest depends on positive or negative
+              balance values:</para>
+
+              <programlisting>  public void applyInterest(int years) {
+    if (0 &lt; balance) {
+      balance = balance * Math.pow((1 + interestRate / 100), years) ;
+    } else if (balance &lt; 0){
+      balance = balance * Math.pow((1 + defaultInterestRate / 100), years) ;
+    }
+  }</programlisting>
+
+              <para>A complete solution including updated
+              <productname>Javadoc</productname> comments can be downloaded
+              <link
+              xlink:href="https://cloud.mi.hdm-stuttgart.de/owncloud/public.php?service=files&amp;t=577bc9091391524692b6d812a6d2737a">from
+              here</link>.</para>
             </answer>
           </qandaentry>
         </qandadiv>