최신Oracle Java SE 11 Programmer II - 1Z0-816무료샘플문제

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

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

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

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

A. It always executes the System.out::print statement.

B. If the value is not present, a NoSuchElementException is thrown at run time.

C. If the value is not present, nothing is done.

D. If the value is not present, a NullPointerException is thrown at run time.

A. public String toString() { return String.valueOf(v); }

B. String toString() { return "200"; }

C. public String toString() { return String.valueOf(ALPHA.v); }

D. public String toString() { return String.valueOf(Letter.values()[1]); }

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

B. The program throws a NoSuchFileException.

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

D. The program throws a FileaAlreadyExistsException.

A. Change line 7 to return names.clone();.

B. Change line 3 to private Secret(String[] names) {.

C. Change line 2 to protected volatile String[] names;.

D. Change line 6 to public synchronized String[] getNames() {.

E. Change line 2 to private final String[] names;.

F. Change the getNames() method name to get$Names().

G. Change line 4 to this.names = names.clone();.

A. The -jdkinternals option analyzes all classes in the .jar and prints all class-level dependencies.

B. The -jdkinternals option analyzes all classes in the .jar for class-level dependencies on JDK internal APIs. If any are found, the results with suggested replacements are output in the console.

C. jdeps lists the module dependencies and the package names of all referenced JDK internal APIs. If any are found, the suggested replacements are output in the console.

D. jdeps outputs an error message that the -jdkinternals option requires either the -summary or the - verbose options to output to the console.

A. [Peter, 25, null, 1000]

B. [Market Road, 1000]

C. An exception is thrown at run time.

D. [Peter, 30, Market Road]

A. Option D

B. Option C

C. Option A

D. Option B