diff -r 251d0ed461fb -r 58ec6da75f6f task4/solution12/src/org/apidesign/apifest08/currency/ExchangeRate.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/task4/solution12/src/org/apidesign/apifest08/currency/ExchangeRate.java	Sat Oct 11 23:38:46 2008 +0200
@@ -0,0 +1,35 @@
+package org.apidesign.apifest08.currency;
+
+import java.util.Currency;
+
+public class ExchangeRate {
+
+  private Currency originalCurrency;
+  private Currency newCurrency;
+  private double unit;
+  private double rate;
+
+  public ExchangeRate(Currency originalCurrency, Currency newCurrency, double rate, double unit) {
+    this.newCurrency = newCurrency;
+    this.originalCurrency = originalCurrency;
+    this.rate = rate;
+    this.unit = unit;
+  }
+
+  public Currency getOriginalCurrency() {
+    return originalCurrency;
+  }
+
+  public Currency getNewCurrency() {
+    return newCurrency;
+  }
+
+  public double getUnit() {
+    return unit;
+  }
+
+  public double getRate() {
+    return rate;
+  }
+
+}