Each ________ needs a plan and a measured response spelled out in the disaster recovery plan
A) plan B) recovery C) assessment D) threat
D
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Which of the following statements related to JPA is false?
a. The Java Persistence API (JPA) maps Java classes to relational database tables and objects of those classes to rows in the tables. This is known as object-relational mapping. b. You can use the NetBeans IDE’s object-relational mapping tools to select a database and autogenerate classes that use JPA to interact with that database. Your programs can then use those classes to query the database, insert new records, update existing records and delete records. c. Unlike JDBC, you will have to create mappings between your Java code and database tables, and you’ll be able to perform complex database manipulations directly in Java. d. JPA can be used with any database management system that supports JDBC.
Write a class LapTimer that can be used to time the laps in a race. The class should have the following private attributes:
• running—a boolean indication of whether the timer is running • startTime—the time when the timer started • lapStart—the timer’s value when the current lap started • lapTime—the elapsed time for the last lap • totalTime—the total time from the start of the race through the last completed lap • lapsCompleted—the number of laps completed so far • lapsInRace—the number of laps in the race The class should have the following methods: • LapTimer(n)—a constructor for a race having n laps. • start —starts the timer. Throws an exception if the race has already started. • markLap—marks the end of the current lap and the start of a new lap. Throws an exception if the race is finished. • getLapTime—returns the time of the last lap. Throws an exception if the first lap has not yet been completed. • getTotalTime—returns the total time from the start of the race through the last completed lap. Throws an exception if the first lap has not yet been completed. • getLapsRemaining—returns the number of laps yet to be completed, including the current one. Express all times in seconds. To get the current time in milliseconds from some baseline date, invoke Calendar.getInstance().getTimeInMillis() This invocation returns a primitive value of type long. By taking the difference between the returned values of two invocations at two different times, you will know the elapsed time in milliseconds between the invocations. Note that the class Calendar is in the package java.util.
The Show Formulas button is on the ________ tab of the Ribbon
Fill in the blank(s) with the appropriate word(s).
What technique can be used to combine two different loops into one?
A. pretesting loop B. short-circuiting loop C. loop accumulation D. loop fusion