Given： A programmer iterates over the TreeSet and prints the name of each Drink object. What is the result？（） Tea。 Coffee。 CoffeeTea。 Compilation fail。
摩擦学概括起来有以下八方面
You work as a database administrator for Certkiller .com. When you tried to connect to the database， you received the following error： ERROR： ORA-12541：TNS：no_listener You found that the listener is not running on the server， so you issued the following command in the Listener Control utility to start the listener. lsnrctl>START What statement is true？（） It would attempt to start the default listener。 It would start the most recently created listener.。 It would display an error with a message asking for the listener name to be specified.。 It would show you a list of listeners and prompts for the listener name that you want to start.。
You are planning the creation of a new multitenant container database (CDB) and want to store the ROOT and SEED container data files in separate directories. You plan to create the database using SQL statements. Which three techniques can you use to achieve this?（） Use Oracle Managed Files (OMF).。 Specify the SEED FILE_NAME_CONVERT clause.。 Specify the PDB_FILE_NAME_CONVERT initialization parameter.。 Specify the DB_FILE_NAMECONVERT initialization parameter.。 Specify all files in the CREATE DATABASE statement without using Oracle managed Files (OMF).。
简要叙述成本法评估资产的缺点。
What does the FIND_MENU_ITEM built-in function return?（）
