Online Access Free Oracle.1z0-809.v2022-02-15.q180 Practice Test (Page 33)

Given the code fragment:

Which should be inserted into line n1to print Average = 2.5?

A.IntStream str = Stream.of (1, 2, 3, 4);

B.DoubleStream str = Stream.of (1.0, 2.0, 3.0, 4.0);

C.IntStream str = IntStream.of (1, 2, 3, 4);

D.Stream str = Stream.of (1, 2, 3, 4);

Given:

From what threading problem does the program suffer?

A.race condition

B.deadlock

C.starvation

D.livelock

Given the code fragment:

Which two code fragments, when inserted at line n1independently, result in the output PEEK: Unix?

A..allMatch ();

B..noneMatch ();

C..findAny ();

D..anyMatch ();

E..findFirst ();

Given the for loop construct:
for ( expr1 ; expr2 ; expr3 ) {
statement;
}
Which two statements are true?

A.This is not the only valid for loop construct; there exits another form of for loop constructor.

B.The expression expr1 is optional. it initializes the loop and is evaluated once, as the loop begin.

C.When expr2 evaluates to false, the loop terminates. It is evaluated only after each iteration through the loop.

D.The expression expr3 must be present. It is evaluated after each iteration through the loop.

Given the code fragment:

What is the result?

A.text1text2

B.text1

C.[text1, text2]

D.text1text2text2text3

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