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<td width="90%"><font size="4" face="Verdana, Arial, Helvetica"><b>主程序</b></font></td><td width="200" align="right"><font size="1" face="Verdana, Arial, Helvetica"><nobr>   第 5 页（共7 页）</nobr></font></td>
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<p>对于以下驱动程序部分，您应该不会感到惊奇。只是对对象的构造作了些更改。</p>
<pre>
<code style="font-family: Courier New, Courier, monospace; font-size: 12">
// start a new transaction
t.begin();
{
         // create 3 new addresses
         AddressImpl a1 =
                 new AddressImpl("1111 Avalanche Drive", "", "Denver", "CO", "80237");

         AddressImpl a2 =
                 new AddressImpl("2222 Twins St.", "", "Rochester", "MN", "55901");
         AddressImpl a3 =
                 new AddressImpl("3333 Skunk St.", "", "Manitowoc", "WI", "11111");

         // create 2 employees and 1 manager
         PersonImpl p1 =
                 new PersonImpl(a1,"Paul", "Monday", "11",
                         "pmonday@attbi.com", "303-555-1212");
         PersonImpl p2 =
                 new PersonImpl(a2,"Anson", "Williams", "12",
                         "anson@isaak.com", "777-555-1212");
         ManagerImpl m1 =
                 new ManagerImpl(a3,"Fox", "Mulder", "21",
                         "abducted@fox.net", "222-555-1212");

         Vector v = new Vector(2);
         v.add(p1);
         v.add(p2);
         DepartmentImpl dept = new DepartmentImpl(
                 v, m1, "ARCHITECTURE");

         pm.makePersistent(dept);
}

// commit the transaction, all changes made between
//	the begin and commit are set to the db
t.commit();

// start a new transaction
t.begin();
{
         // create 3 new addresses
         AddressImpl a1 =
                 new AddressImpl("4444 Lombardi St.", "", "Green Bay", "WI", "45001");
         AddressImpl a2 =
                 new AddressImpl("55 Woods Way", "", "Miami", "FL", "12001");
         AddressImpl a3 =
                 new AddressImpl("79 Borg Avenue", "", "Voyager", "MN", "55890");

         // create 2 employees and 1 manager
         PersonImpl p1 =
                 new PersonImpl(a1,"Arty", "Garhunkle", "19",
                         "troubled@bridge.net", "777-555-1212");
         PersonImpl p2 =
                 new PersonImpl(a2,"ElTigre", "Madera", "80",
                         "par@forcourse.com", "250-555-1212");
         ManagerImpl m1 =
                 new ManagerImpl(a3,"Jerry", "Smith", "85",
                         "jerry@public.edu", "313-555-1212");

         Vector v = new Vector(2);
         v.add(p1);
         v.add(p2);

         DepartmentImpl dept = new DepartmentImpl(
                 v, m1, "QUAKE");

         pm.makePersistent(dept);
}

// commit the transaction, all changes made between
//	the begin and commit are set to the db
t.commit();
</code>
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