Free Access Oracle.1z1-819.v2024-12-02.q198 Practice Test (Page 5)

Question 16

Given:

and

Which two method definitions at line n1 in the Bar class compile? (Choose two.)

A.public ArrayList<Integer> foo(Set<String> m) {...}

B.public ArrayList<Number> foo(Set<CharSequence> m) {...}

C.public List<Integer> foo(Set<CharSequence> m) {...}

D.public List<Integer> foo(TreeSet<String> m) {...}

E.public List<Object> foo(Set<CharSequence> m) {...}

F.public List<Number> foo(Set<String> m) {...}

Question 17

Given the code fragment:

What is the output?

A.Null

B.41 def 42

C.Def 42

D.An exception is thrown at runtime

Question 18

Given:

What is the result?

A.nothing

B.It fails to compile.

C.0

D.A java.lang.IllegalArgumentException is thrown.

E.10

Question 19

Which module-info.java is correct for a service provider for a print service defined in the PrintServiceAPI module?

A.module PrintServiceProvider {
requires PrintServiceAPI;
uses com.provider.PrintService;
}

B.module PrintServiceProvider {
requires PrintServiceAPI;
provides org.printservice.spi.Print with
com.provider.PrintService;
}

C.module PrintServiceProvider {
requires PrintServiceAPI;
exports org.printservice.spi.Print with
D18912E1457D5D1DDCBD40AB3BF70D5D
com.provider.PrintService;
}

D.module PrintServiceProvider {
requires PrintServiceAPI;
exports org.printservice.spi;
}

Question 20

A company has an existing Java app that includes two Java 8 jar files, sales-3.10. jar and clients-10.2.jar.
The jar file ,sales -8, 10, jar reference packages in clients -10.2 jar, but clients-10.2 jar does not reference packages in sales -8.10, jar.
They have decided to modularize clients-10.2.jar.
Which module-info. Java file would work for the new library version clients-10.3 jar?
A)