Given:

What is the result?

• A.The compilation fails.
• B.1.99,2.99,0
• C.1.99,2.99,0.0
• D.1.99,2.99

Correct Answer: A

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Which three annotation uses are valid? (Choose three.)

• A.var obj = new @Interned MyObject();
• B.var v = "Hello" + (@Interned) "World"
• C.Function<String, String> func = (@NonNull var x) > x.toUpperCase();
• D.var myString = (@NonNull String) str;
• E.Function<String, String> func = (@NonNull x) > x.toUpperCase();
• F.Function<String, String> func = (var @NonNull x) > x.toUpperCase();

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Given:

Which statement on line 1 enables this code fragment to compile?

• A.Function function = String::toUpperCase;
• B.UnaryOperator function = s > s.toUpperCase();
• C.UnaryOperator<String> function = String::toUpperCase;
• D.Function<String> function = m > m.toUpperCase();

Correct Answer: C

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

• A.java --module-path mods -m com.example/com.acme.Main
• B.java -classpath com.example.jar com.acme.Main
• C.java -classpath com.example.jar -m com.example/com.acme.Main
• D.java --module-path mods com.example/com.acme.Main

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Given:

executed with this command:
java Main one two three
What is the result?

• A.It creates an infinite loop printing:0). one1). two1). two...
• B.0). one
• C.0). one1). two2). three
• D.The compilation fails.
• E.A java.lang.NullPointerException is thrown.

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