Oracle 1Z0-808 Online Practice Questions and Exam Preparation

Oracle 1Z0-808 Online Questions & Answers

• Question 181:

  Given:

  

  Which code fragment can replace the if block?

  

  A. B. C. D.
  D

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  Explanation/Reference:

• Question 182:

  Given:

  public class TestOperator {

  public static void main(String[] args) {

  int result = 30 -12 / (2*5)+1;

  System.out.print("Result = " + result);

  }

  }

  What is the result?

  A. Result = 2
  B. Result = 3
  C. Result = 28
  D. Result = 29
  E. Result = 30
  E. Result = 30

• Question 183:

  Given:

  

  Which two classes use the shape class correctly?

  

  A. Option A
  B. Option B
  C. Option C
  D. Option D
  E. Option E
  F. Option F
  B. Option B
  E. Option E

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  Explanation/Reference:

  When an abstract class is subclassed, the subclass usually provides implementations for all of the abstract methods in its parent class (E). However, if it does not, then the subclass must also be declared abstract (B). Note: An abstract class is a class that is declared abstract--it may or may not include abstract methods. Abstract classes cannot be instantiated, but they can be subclassed.

• Question 184:

  Given the code fragment:

  

  Test.java:

  

  Which is the result?

  

  A. Option A
  B. Option B
  C. Option C
  D. Option D
  E. Option E
  D. Option D

• Question 185:

  Given the code fragment:

  

  What is the result?

  A. It results in a compile time error at line 18.
  B. It results in a compile time error at line 9.
  C. It prints : 1
  D. It results in a compile time error at lines at lines 12 and 15.
  A. It results in a compile time error at line 18.

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  Explanation/Reference:

  

• Question 186:

  Given:

  public class Painting {

  private String type;

  public String getType() {

  return type;

  }

  public void setType(String type) {

  this.type = type;

  }

  public static void main(String[] args) {

  Painting obj1 = new Painting();

  Painting obj2 = new Painting();

  obj1.setType(null);

  obj2.setType("Fresco");

  System.out.print(obj1.getType() + " : " + obj2.getType());

  }

  }

  What is the result?

  A. : Fresco
  B. null : Fresco
  C. Fresco : Fresco
  D. A NullPointerException is thrown at runtime
  B. null : Fresco

• Question 187:

  Given the code fragment:

  public static void main(String[] args) {

  int iArray[] = {65, 68, 69};

  iArray[2] = iArray[0];

  iArray[0] = iArray[1];

  iArray[1] = iArray[2];

  for (int element : iArray) {

  System.out.print(element + " ");

  }

  A. 68, 65, 69
  B. 68, 65, 65
  C. 65, 68, 65
  D. 65, 68, 69
  E. Compilation fails
  B. 68, 65, 65

• Question 188:

  Given the code fragment:

  

  Which code fragment at line 10 prints Welcome 100?

  

  A. Option A
  B. Option B
  C. Option C
  D. Option D
  B. Option B

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  Explanation/Reference:

  

• Question 189:

  Given:

  

  And given the commands:

  

  What is the result?

  A. TRUE null
  B. true false
  C. false false
  D. true true
  E. A ClassCastException is thrown at runtime.
  C. false false

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  Explanation/Reference:

• Question 190:

  Given the code fragments: What is the result?

  

  A. Super Sub Sub
  B. Contract Contract Super
  C. Compilation fails at line n1
  D. Compilation fails at line n2
  D. Compilation fails at line n2