Adding examples for kerberos auth token

Author: Zhen

examples/src/main/java/org/neo4j/docs/driver/KerberosAuthExample.java

@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2002-2017 "Neo Technology,"
+ * Network Engine for Objects in Lund AB [http://neotechnology.com]
+ *
+ * This file is part of Neo4j.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.neo4j.docs.driver;
+
+// tag::kerberos-auth-import[]
+
+import org.neo4j.driver.v1.AuthTokens;
+import org.neo4j.driver.v1.Driver;
+import org.neo4j.driver.v1.GraphDatabase;
+// end::kerberos-auth-import[]
+
+public class KerberosAuthExample implements AutoCloseable
+{
+    private final Driver driver;
+
+    // tag::kerberos-auth[]
+    public KerberosAuthExample( String uri, String ticket )
+    {
+        driver = GraphDatabase.driver( uri, AuthTokens.kerberos( ticket ) );
+    }
+    // end::kerberos-auth[]
+
+    @Override
+    public void close() throws Exception
+    {
+        driver.close();
+    }
+}