Oracle Java SE 11 Programmer II - 1Z0-816 Exam Practice Test

A. Consumer consumer = msg -> { return System.out.print(msg); };

B. Consumer consumer = (String args) -> System.out.print(args);

C. Consumer consumer = var arg -> {System.out.print(arg);};

D. Consumer consumer = System.out::print;

A. Float g = Float.valueOf(null);

B. Long c = 23L;

C. Double d = 4;

D. String a = "A";

E. Float f = 6.0;

F. Integer e = 5;

A. private Print print = new com.service.Provider.PrintImpl();

B. private java.util.ServiceLoader<Print> loader = new java.util.ServiceLoader<> ();

C. private java.util.ServiceLoader<Print> loader = ServiceLoader.load (Print.class);

D. private Print print = com.service.Provider.getInstance();

A. Exception

B. /u01/work/filestore.txt is not deleted.

C. The compilation fails.

D. /u01/work/filestore.txt is deleted.

A. http://localhost.mysql.com:3306/database

B. jdbe.mysql.com://localhost:3306/database

C. jdbc:mysql://localhost:3306/database

D. http://localhost mysql.jdbc:3306/database

A. Runnable r = -> System.out.println("Message");

B. Runnable r = () -> {System.out.println("Message");};

C. Runnable r = {System.out.println("Message")};

D. Runnable r = "Message" -> System.out.println();

E. Runnable r = () -> System.out::print;

A. List<? super Number> list = new ArrayList<Integer>();

B. List<? super Float> list = new ArrayList<Double>();

C. List<? extends Number> list = new ArrayList<Object>();

D. List<? super Short> list = new ArrayList<Number>();

E. List<? extends Number> list = new ArrayList<Byte>();

A. No change is required.

B. Move the declaration of lock inside the foo method.

C. Replace the lock constructor call with new ReentrantLock (true).

D. Make the declaration of lock static.