최신 1Z0-819 무료덤프 - Oracle Java SE 11 Developer

A. Option D

B. Option C

C. Option B

D. Option A

A. String

B. Character

C. String[ ]

D. char

A. The code throws an exception at runtime.

B. The code does not compile.

C. The code prints 25.

D. The code compiles but does not print any result.

A. "eeee d'th of' MMMM yyyy"

B. "eeee dd+"th of"+ MMM yyyy"

C. "eeee d+"th of"+ MMMM yyyy"

D. "eeee dd'th of' MMM yyyy"

A. Use trusted domain-specific libraries to validate inputs.

B. Assume inputs have already been validated.

C. Modify the input values, as needed, to pass validation.

D. Delegate numeric range checking of values to the database.

E. Accept only valid characters and input values.

A. At once 0

B. Hat at store 4

C. At once 1

D. Hat at store 1

E. An indexOutofBoundsException is thrown at runtime.

A. Starvation

B. Deadlock

C. Livelock

D. Race Condition

A. public abstract void methodB();

B. public String methodD();

C. private abstract void methodC();

D. public int x;

E. final void methodG(){System.out.println("G");}

F. public void methodF(){System.out.println("F");}

G. final void methodE();

A. The readExternal method

B. nothing

C. The writeExternal method

D. The readExternal and writeExternal method

A. UnaryOperator<Interger >uo = x -> { return x * 3; };

B. UnaryOperator<Interger >uo = (int x) -> x * 3;

C. UnaryOperator<Interger >uo = var x -> { return x 3 ; };

D. UnaryOperator<Interger > uo = (var x ) -> (x * 3);

A. double totalSalary = list.stream().map(Employee::getSalary * ratio).reduce (bo).orElse(0.0);

B. double totalSalary = list.stream().mapToDouble(e -> e.getSalary() * ratio).sum;

C. double totalSalary = list.stream().mapToDouble(e -> e.getSalary() * ratio).reduce(starts, bo);

D. double totalSalary = list.stream().map(e -> e.getSalary() * ratio).reduce (bo).ifPresent (p -> p.doubleValue());

A.

B.

C.

D.

A. -1 : 2

B. 3 : 0

C. 2 : 3

D. 2 : -1

A. B cannot be abstract.

B. A cannot be final.

C. A is a subtype of B.

D. B is a subtype of A.

E. B cannot be final.

F. A cannot be abstract.

A. false false true

B. false true true

C. false true false

D. true false false

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

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

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

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

A. A NoSuchElementException is thrown at run time.

B. null

C. A NullPointerException is thrown at run time.

D. Duke

A. The code prints nothing.

B. 0 8 10

C. 0 4 9

D. 0 8

E. 0

A. int x = 12_34;

B. int[][][] e = {{1,1,1},{2,2,2}};

C. short sh = (short)'A';

D. boolean false = (4 != 4);

E. String contact# = "(+2) (999) (232)";

F. float x = 1f;

G. byte b = 10;
char c = b;

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

B. Make the declaration of lock static.

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

D. No change is required.