최신 1z1-819 무료덤프 - Oracle Java SE 11 Developer

A. nothing

B. 5 4 3 2 1

C. 5 4 3 2 1 4 3 2 1 3 2 1 2 1 1

D. 5

A. 13

B. 12

C. 23

D. 123

A. Interfaces cannot have methods with bodies but abstract classes can.

B. Interfaces cannot have instance fields but abstract classes can.

C. Both interfaces and abstract classes can have final methods.

D. Interfaces cannot have static methods but abstract classes can.

E. Interfaces cannot have protected methods but abstract classes can.

A. 4

B. 3

C. 2

D. 5

A. catch(FileNotFoundException e) { }catch(IndexOutOfBoundsException e) { }

B. catch(FileNotFoundException | IOException e) { }

C. catch(IOException e) { }

D. catch(FileNotFoundException | IndexOutOfBoundsException e) { }

E. catch(IndexOutOfBoundsException e) { }catch(FileNotFoundException e) { }

A. Consumer

B. Function

C. Supplier

D. Predicate

A. Joe
null

B. Joe
Marry

C. null
null

D. null
Mary

A. Replace line 1with int sum = number.stream. parallel ( ). Reduce (0, (n, m) -> n + m);

B. Replace line 1 with int sum = numbers. Parallel ( ). Stream ( ). Reduce (0, (n, m ) -> n + m);

C. Replace line 1with int sum = numbers. ParallelStream ( ). Reduce (0, (n, m ) -> n + m);

D. Replace line 1with int sum = number. Stream ( ) . flatMap (a -> a) .reduce (0, (n, m) -> n +m );

E. Replace line 1 with int sum = numbers. Stream (). Interate (0, a -> a+1. Reduce (0, (n m) -> n+m);

A. ghi jkl

B. gj hk il

C. The compilation fails.

D. gh ij kl

E. An ArrayIndexOutofBoundsException is thrown at runtime.

A. System.out.printin(supplier.test() );

B. System.out.printin(supplier.get() );

C. System.out.printin(supplier.apply() );

D. System.out.printin(supplier.accept() );

A. 1
1
1

B. A NullPointerException is thrown at run time.

C. The compilation fails.

D. A ClassCastException is thrown at run time.

E. 1
Null
null

A. A NoSuchElementException is thrown at run time.

B. null

C. A NullPointerException is thrown at run time.

D. Duke

A. Make foo synchronized.

B. Class A is thread safe.

C. Make foo and sets synchronized.

D. Make setB synchronized.

E. Make a synchronized.

A. A module providing an implementation of country.CountryDetails must have a requires main; directive in its module-info.java file.

B. A module providing an implementation of country.CountryDetails can be compiled and added without recompiling the main module.

C. To compile without an error, the application must have at least one module in the module source path that provides an implementation of country.CountryDetails.

D. An implementation of country.countryDetails can be added to the main module.

E. To run without an error, the application must have at least one module in the module path that provides an implementation of country.CountryDetails.

A. Add extends GeneralException on line 1.
Add extends Exception on line 2.

B. Add extends Exception on line 1.
Add extends GeneralException on line 2.

C. Add extends SpecificException on line 1.
Add extends GeneralException on line 2.

D. Add extends Exception on line 1.
Add extends Exception on line 2.

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

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

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

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

A. The compilation fails due to an error in line 5.

B. 42

C. The compilation fails due to an error in line 3.

D. The compilation fails due to an error in line 4.

E. The compilation fails due to an error in line 1.

F. The compilation fails due to an error in line 2.

G. 17

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

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

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

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

A. List<Character>

B. String

C. List<String>

D. char

A. Option D

B. Option C

C. Option B

D. Option A