--- /dev/null
+package b;
+
+import java.math.BigDecimal;
+import java.util.Date;
+import java.util.Set;
+import java.util.UUID;
+
+
+public class Sale
+{
+ private String id;
+ private BigDecimal amount;
+ private Date dateTime;
+ private Set<Clerk> salesClerks;
+ private Customer customer;
+
+ public Sale()
+ {
+ this(UUID.randomUUID().toString());
+ }
+
+ public Sale(String id)
+ {
+ this.id = id;
+ }
+}
\ No newline at end of file