最新的Oracle Java SE 11 Developer - 1Z0-819免費考試真題

A. is it 1

B. this is it 2

C. is it 0

D. this is it 3

E. An IndexOutOfBoundsException is thrown at runtime.

A. name. compareTo('' '') == 0

B. name.isEmpty

C. name.trim() == '' ''

D. name, isBlanl ()

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

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

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

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

A. Configuration is OK

B. nothing

C. Exception in thread "main" java.lang.Error:Fatal Error: Configuration File, App.config, is missing.

D. The compilation fails.

A. The compilation fails at line 2.

B. Hello World

C. The compilation fails at line 8.

D. The compilation fails at line 9.

A. The program throws a FileaAlreadyExistsException.

B. /scratch/exam/new.txt and /scratch/new.txt are deleted.

C. The program throws a NoSuchFileException.

D. A copy of /scratch/exam/new.txt exists in the /scratch directory and /scratch/exam/new.txt is deleted.

A.

B.

C.

D.

E.

A. An ArrayIndexOutofBoundsException is thrown at runtime.

B. ghi jkl

C. gh ij kl

D. The compilation fails.

E. gj hk il

A. Add catch (L e).

B. Add catch (L |M N e).

C. Add catch (L |N e).

D. Add catch (N | L | M e).

E. Add catch (M |L e).

A. It throws a runtime exception.

B. Value of Euler = 2.71828

C. The code does not compile.

D. Value of Euler = "2.71828"

A. line n4

B. line n3

C. line n2

D. line n1

A. public <T> Collection<T> foo(Stream<T> arg) { ... } overloads Foo.foo.

B. public Collection<String> foo(Collection<String> arg) { ... } overrides Foo.foo.

C. public <T> List<T> foo(Collection<T> arg) { ... } overrides Foo.foo.

D. public <T> Collection<T> foo(Collection<T> arg) { ... } overloads Foo.foo.

E. public <T> Iterable<T> foo(Collection<T> arg) { ... } overrides Foo.foo.

F. public <T> Collection<T> bar(Collection<T> arg) { ... } overloads Foo.foo.

A.

B.

C.

D.

A. Return new House<?>();

B. Return new House<admin1>();

C. Return new House<Dog> () ;

D. Return new House<A> () ;

E. Return new House <Petdog> () ;