### Question:
HCatClient { public abstract void createTableLike(String dbName, String existingTblName, String newTableName, boolean ifNotExists, boolean isExternal, String location) throws HCatException;  static HCatClient create(Configuration conf); abstract List<String> listDatabaseNamesByPattern(String pattern); abstract HCatDatabase getDatabase(String dbName); abstract void createDatabase(HCatCreateDBDesc dbInfo); abstract void dropDatabase(String dbName, boolean ifExists,
                    DropDBMode mode); abstract List<String> listTableNamesByPattern(String dbName, String tablePattern); abstract HCatTable getTable(String dbName, String tableName); abstract void createTable(HCatCreateTableDesc createTableDesc); abstract void updateTableSchema(String dbName, String tableName, List<HCatFieldSchema> columnSchema); abstract void createTableLike(String dbName, String existingTblName,
                     String newTableName, boolean ifNotExists, boolean isExternal,
                     String location); abstract void dropTable(String dbName, String tableName,
                   boolean ifExists); abstract void renameTable(String dbName, String oldName,
                   String newName); abstract List<HCatPartition> getPartitions(String dbName, String tblName); abstract List<HCatPartition> getPartitions(String dbName, String tblName, Map<String, String> partitionSpec); abstract HCatPartition getPartition(String dbName, String tableName,
                         Map<String, String> partitionSpec); abstract void addPartition(HCatAddPartitionDesc partInfo); abstract int addPartitions(List<HCatAddPartitionDesc> partInfoList); abstract void dropPartitions(String dbName, String tableName,
                    Map<String, String> partitionSpec, boolean ifExists); abstract List<HCatPartition> listPartitionsByFilter(String dbName, String tblName,
                                 String filter); abstract void markPartitionForEvent(String dbName, String tblName,
                         Map<String, String> partKVs, PartitionEventType eventType); abstract boolean isPartitionMarkedForEvent(String dbName, String tblName,
                            Map<String, String> partKVs, PartitionEventType eventType); abstract String getDelegationToken(String owner,
                        String renewerKerberosPrincipalName); abstract long renewDelegationToken(String tokenStrForm); abstract void cancelDelegationToken(String tokenStrForm); abstract String getMessageBusTopicName(String dbName, String tableName); abstract void close(); static final String HCAT_CLIENT_IMPL_CLASS; }### Answer:
@Test public void testCreateTableLike() throws Exception { HCatClient client = HCatClient.create(new Configuration(hcatConf)); String tableName = "tableone"; String cloneTable = "tabletwo"; client.dropTable(null, tableName, true); client.dropTable(null, cloneTable, true); ArrayList<HCatFieldSchema> cols = new ArrayList<HCatFieldSchema>(); cols.add(new HCatFieldSchema("id", Type.INT, "id columns")); cols.add(new HCatFieldSchema("value", Type.STRING, "id columns")); HCatCreateTableDesc tableDesc = HCatCreateTableDesc .create(null, tableName, cols).fileFormat("rcfile").build(); client.createTable(tableDesc); client.createTableLike(null, tableName, cloneTable, true, false, null); List<String> tables = client.listTableNamesByPattern(null, "table*"); assertTrue(tables.size() == 2); client.close(); }