Oracle 1Z0-808 Online Practice Questions and Exam Preparation

Oracle 1Z0-808 Online Questions & Answers

• Question 191:

  Given the code fragment:

  

  Which code fragment, inserted at line n1, prints The Top element: 30?

  

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

  ---

  Explanation/Reference:

• Question 192:

  Given the code fragment

  

  Which code fragments, inserted independently, enable the code compile?

  A. t.fvar = 200;
  B. cvar = 400;
  C. fvar = 200; cvar = 400;
  D. this.fvar = 200; this.cvar = 400;
  E. t.fvar = 200; Test2.cvar = 400;
  F. this.fvar = 200; Test2.cvar = 400;
  B. cvar = 400;

• Question 193:

  Given:

  

  What will be the output?

  

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

• Question 194:

  Given the code fragment:

  

  What is the result?

  A. 2012-02-10
  B. 2012-01-30
  C. 2012-02-10 00:00
  D. A DateTimeException is thrown at runtime.
  D. A DateTimeException is thrown at runtime.

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  Explanation/Reference:

• Question 195:

  Given:

  

  What is the result?

  A. int main 1
  B. Object main 1
  C. String main 1
  D. Compilation fails
  E. An exception is thrown at runtime
  C. String main 1

• Question 196:

  Given the code fragment:

  

  What is the result?

  A. Answer = 0
  B. Invalid calculation
  C. Compilation fails only at line n1.
  D. Compilation fails only at line n2.
  E. Compilation fails only at line n1 and line2.
  E. Compilation fails only at line n1 and line2.

• Question 197:

  Given the code fragment:

  

  What is the result?

  A. An exception is thrown at runtime.
  B. -1
  C. 5
  C. 5

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  Explanation/Reference:

• Question 198:

  Given the following class:

  

  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?

  A. Call the setArea method at the end of the setHeight method.
  B. Call the setArea method at the beginning of the setHeight method.
  C. Call the setArea method at the end of the setLength method.
  D. Call the setArea method at the beginning of the setLength method.
  E. Change the setArea method to private.
  F. Change the area field to public.
  A. Call the setArea method at the end of the setHeight method.
  C. Call the setArea method at the end of the setLength method.

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  Explanation/Reference:

  The answer is AC

  public class Rectangle {

  private double length;

  private double height;

  private double area;

  public void setLength(double length) {

  this.length = length;

  setArea();

  }

  public void setHeight(double height) {

  this.height = height;

  setArea();

  }

  public void setArea() {

  this.area = length * height;

  }

  public static void main(String[] args) {

  Rectangle a = new Rectangle();

  a.setHeight(2);

  a.setLength(3);

  a.setArea();

  System.out.println(a.area);

  }

  }

• Question 199:

  Which two array initialization statements are valid? (Choose two.)

  A. int array[] = new int[3] {1, 2, 3};
  B. int array[] = new int[3]; array[0] = 1; array[1] = 2; array[2] = 3;
  C. int array[3] = new int[] {1, 2, 3};
  D. int array[] = new int[3]; array = {1, 2, 3};
  E. int array[] = new int[] {1,2,3};
  B. int array[] = new int[3]; array[0] = 1; array[1] = 2; array[2] = 3;
  E. int array[] = new int[] {1,2,3};

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  Explanation/Reference:

  Reference: https://stackoverflow.com/questions/1200621/how-do-i-declare-and-initialize-an-array-in-java

• Question 200:

  Given:

  

  Which statement is true?

  A. Both p and s are accessible by obj.
  B. Only s is accessible by obj.
  C. Both r and s are accessible by obj.
  D. p, r, and s are accessible by obj.
  B. Only s is accessible by obj.