Question 1

Given the code fragment:

What is the result?

Options :

A : false true true

B : true false false

C : false false true

D : false true false

Answer: D

Question 2

Which command line runs the main class com.acme.Main from the module com.example?

Options :

A : java --module-path mods com.example/com.acme.Main

B : java --classpath com.example.jar com.acme.Main

C : java --module-path mods -m com.example/com.acme.Main

D : java -classpath com.example.jar --m com.example/com.acme.Main

Answer: D

Question 3

Given:

Which statement on line 1 enables this code to compile?

Options :

A : Function<Integer, Integer> f = n > n * 2;

B : Function<Integer> f = n > n * 2;

C : Function<int> f = n > n * 2;

D : Function<int, int> f = n > n * 2;

E : Function f = n > n * 2;

Answer: A

Question 4

Which statement about access modifiers is correct?

Options :

A : An instance variable can be declared with the static modifier.

B : A local variable can be declared with the final modifier.

C : An abstract method can be declared with the private modifier.

D : An inner class cannot be declared with the public modifier.

E : An interface can be declared with the protected modifier.

Answer: B

Question 5

Given:

var fruits = List.of(''apple'', ''orange'', ''banana'', ''lemon'');

You want to examine the first element that contains the character n. Which statement will accomplish this?

Options :

A : String result = fruits.stream().filter(f > f.contains(''n'')).findAny();

B : fruits.stream().filter(f > f.contains(''n'')).forEachOrdered(System.out::print);

C : Optional<String> result = fruits.stream().filter(f > f.contains (''n'')).findFirst ();

D : Optional<String> result = fruits.stream().anyMatch(f > f.contains(''n''));

Answer: B

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