最新的Oracle 1z0-813免費考試真題

問題1

Given the code fragement:

If exceptions occur when closing the Filewriter object and when retrieving the JString class object, which exception object is propagated up to the caller of the processFile method?

A. Java.lang. NOSuchClassException

B. Java.lang. classNotFoundException

C. Java .jo. ToException

D. Java.lang. Exception

正確答案: B

問題2

Given:

What is the result?

A. 1 2 3 4 5

B. 0 1 2 3 4

C. 1 1 1 1 1

D. 0 1 2 3 4

正確答案: C

問題3

You are asked to implement an interface that processes a batch of transaction objects and returns a discounted value for each transaction as a double primitive value.
Which interface can you use to accomplish the task?

A. DoubleFunction

B. DoubleConsumer

C. DoubleSuppLier

D. ToDoubleFunction

正確答案: D

問題4

Give the code fragment:

Which code fragment, when inserted at line n1, enables the code to print the sum of all the elements in the runs list?

A. return list, Stream () .mapToint(i -> i+ i) . sum();

B. return list, Stream ( ).mapToint (I -> i). sum () ;

C. return list, Stream () .map(1-> 1 +1) .sum{) ;

D. return list, Stream () .map (I -> i) sum () ;

正確答案: B

問題5

Given:

Which code fragment, when inserted at line n1, results in the following output?

A. double totalprise =prd. Stream()
*Parallel ()
*Reduce {0.0, {p1,p2)-> p1. Getprice{}+ p2. Getprice {})

B. double totalprise =prd. Stream{)
Rduce(0.0, {p1, p2 ) -> p1 + p2);

C. double totalprise =prd. Stream()
* Reduce (0,0 Double::sun) ;

D. double totalprise =prd. Stream{)
*Parallel ()
*aap { -> p.getprice{})
* reduce (0.0, (p1, p2) -> p1 + p2) ;

正確答案: B

問題6

Which three must be used when using the java.util-concurrent package to execute a task that returns a result without blocking?

A. Executor

B. Runnable

C. ExecutorService

D. Thread

E. Callable

F. Future

正確答案: C,E,F

最新的Oracle Upgrade to Java SE 8 OCP ( Java SE 6 and all prior versions) - 1z0-813免費考試真題

聯系我們

站內鏈接

最新更新