[Free] 2019(Nov) EnsurePass Oracle 1z0-808 Dumps with VCE and PDF 81-90

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Question No.81

Given:

image

And the code fragment:

image

Which code fragment, when inserted at line 14, enables the code to print Mike Found?

  1. int f = ps.indexOf (p2)

  2. int f = ps.indexOf (Patient (quot;Mikequot;) );

  3. int f = ps.indexOf (new Patient quot;Mikequot;) );

  4. Patient p = new Patient (quot;Mikequot;);Int f = ps.indexOf (p)

Correct Answer: A

Question No.82

Given the code fragment:

image

What is the result?

  1. A B C

  2. A B C D E

  3. A B D E

  4. Compilation fails.

Correct Answer: C

Question No.83

What is the name of the Java concept that uses access modifiers to protect variables and hide them within a class?

  1. Encapsulation

  2. Inheritance

  3. Abstraction

  4. Instantiation

  5. Polymorphism

Correct Answer: A

Explanation:

Using the private modifier is the main way that an object encapsulates itself and hide data from the outside world.

Question No.84

Given the following code:

image

What is the output?

  1. 44

  2. 35

  3. 47

  4. 54

  5. 45

F. 421

Correct Answer: E

Question No.85

Given the code fragment:

image

What is the result?

  1. [Robb, Rick, Bran]

  2. [Robb, Rick]

  3. [Robb, Bran, Rick, Bran]

  4. An exception is thrown at runtime.

Correct Answer: A

Question No.86

Given the code fragment:

image

What is the result?

  1. Sum is 600

  2. Compilation fails at line n1.

  3. Compilation fails at line n2.

  4. A ClassCastException is thrown at line n1.

  5. A ClassCastException is thrown at line n2.

Correct Answer: C

Question No.87

Given the code fragment:

image

What is the result? A. 5 : 5

B. 10 : 10

C. 5 : 10

D. Compilation fails.

Correct Answer: B

Question No.88

Given the following class:

image

Which two changes would encapsulate this class and ensure that the area field is always equal to length * height whenever the Rectangle class is used?

  1. Call the setArea method at the end of the setHeight method.

  2. Call the setArea method at the beginning of the setHeight method.

  3. Call the setArea method at the end of the setLength method.

  4. Call the setArea method at the beginning of the setLength method.

  5. Change the setArea method to private.

  6. Change the area field to public.

Correct Answer: AE

Question No.89

Given the code fragment:

image

What is the result?

  1. An exception is thrown at runtime.

  2. Compilation fails. C. 13480.0

D. 13480.02

Correct Answer: C

Question No.90

Given the code fragment from three files:

image

Which code fragment, when inserted at line 2, enables the code to compile?

image

  1. Option A

  2. Option B

  3. Option C

  4. Option D

  5. Option E

Correct Answer: E

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