public class X implements Runnable （   private int x；   private int y；    public static void main（String args） （   X that = new X（）；   （new Thread（that）） . start（ ）；   （new Thread（that）） . start（ ）；   ）    public synchronized void run（ ） （    for （；；） （    x++；    y++；    System.out.printIn（“x = “ + x + “， y = “ + y）；    ）   ）    ）   What is the result？（）

A、 An error at line 11 causes compilation to fail.

B、 Errors at lines 7 and 8 cause compilation to fail.

C、 The program prints pairs of values for x and y that might not always be the same on the same line  （for example， “x=2， y=1”）

D、 The program prints pairs of values for x and y that are always the same on the same line （forexample， “x=1， y=1”. In addition， each value appears twice （for example， “x=1， y=1” followed by  “x=1， y=1”）

E、 The program prints pairs of values for x and y that are always the same on the same line （for example， “x=1， y=1”. In addition， each value appears twice （for example， “x=1， y=1” followed by  “x=2s， y=2”）

Given the ActionEvent， which method allows you to identify the affected component？（）

A、 GetClass.

B、 GetTarget.

C、 GetSource.

D、 GetComponent.

E、 GetTargetComponent.

In your production database， data manipulation language （DML） operations are executed on theSALES table. You have noticed some dubious values in the SALES table during the last few days. Youare able to track users， actions taken， and the time of the action for this particular period but the changesin data are not tracked. You decide to keep track of both the old data and new data in the table along withthe user information.  What action would you take to achieve this task（）

A、Apply fine-grained auditing.

B、Implement value-based auditing.

C、Impose standard database auditing to auditobject privileges.

D、Impose standard databaseauditing to audit SQL statements.

Your database instance is running with full workload after database creation. You have decided to use a fixed-size undo tablespace. You want to use the Undo Advisor to estimate the capacity of the undo tablespace. Which two factors must you consider before using the Undo Advisor to estimate the capacity of the undotablespace（）

The retention period to support flashback

The expected length of the longest-running query

The number of undo tablespaces in the database

The size of the Flash Recovery Area for the database instance

在Java语言中，不能注释多行内容的符号是（）。

A、以//开始的注释

B、以/*开始，*/结束的注释

C、以/**开始，*/结束的注释

D、以上都不能

A user’s laptop does not produce sound even though the volume settings are at maximum in theoperating system. Which of the following would MOST likely resolve this issue?（）

A、A new sound card

B、A new speaker

C、A BIOS update

D、A hardware volume control