Oracle 1Z0-808 Online Practice Questions and Exam Preparation

Oracle 1Z0-808 Online Questions & Answers

• Question 321:

  Given:

  class Base {

  public static void main(String[] args) {

  System.out.println("Base " + args[2]);

  }

  }

  public class Sub extends Base{

  public static void main(String[] args) {

  System.out.println("Overriden " + args[1]);

  }

  }

  And the commands:

  javac Sub.java

  java Sub 10 20 30

  What is the result?

  A. Base 30
  B. Overridden 20
  C. Overridden 20 Base 30
  D. Base 30 Overridden 20
  B. Overridden 20

• Question 322:

  Which two statements are true for a two-dimensional array of primitive data type?

  A. It cannot contain elements of different types.
  B. The length of each dimension must be the same.
  C. At the declaration time, the number of elements of the array in each dimension must be specified.
  D. All methods of the class object may be invoked on the two-dimensional array.
  C. At the declaration time, the number of elements of the array in each dimension must be specified.
  D. All methods of the class object may be invoked on the two-dimensional array.

  ---

  Explanation/Reference:

  http://stackoverflow.com/questions/12806739/is-an-array-a-primitive-type-or- an-object-or-something-else-entirely

• Question 323:

  Given the code fragment:

  int b = 3;

  if ( !(b > 3)) {

  System.out.println("square ");

  }{

  System.out.println("circle ");

  }

  System.out.println("...");

  What is the result?

  A. square...
  B. circle...
  C. squarecircle...
  D. Compilation fails.
  C. squarecircle...

• Question 324:

  Given the code fragment:

  

  Which two modifications should you make so that the code compiles successfully?

  A. Replace line 13 with:
  B. Replace line 7 with throw IOException ("Exception raised");
  C. Replace line 11 with public static void main(String[ ]) args) throws Exception {
  D. At line 14, insert throw new IOException ();
  E. Replace line 5 with public void printFileContent () throws IOException {
  C. Replace line 11 with public static void main(String[ ]) args) throws Exception {
  E. Replace line 5 with public void printFileContent () throws IOException {

• Question 325:

  Given the code fragment:

  

  What is the result?

  A. A B C Work done
  B. A B C D Work done
  C. A Work done
  D. Compilation fails
  C. A Work done

• Question 326:

  Which two statements are true about Java byte code? (Choose two.)

  A. It can be serialized across network.
  B. It can run on any platform that has a Java compiler.
  C. It can run on any platform.
  D. It has ".java" extension.
  E. It can run on any platform that has the Java Runtime Environment.
  A. It can be serialized across network.
  E. It can run on any platform that has the Java Runtime Environment.

• Question 327:

  Given the code fragment:

  

  Which option represents the state of the num array after successful completion of the outer loop?

  

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

• Question 328:

  Given:

  

  What is the result?

  A. Good Luck!
  B. Good Day!
  C. Welcome!
  D. Hello!
  C. Welcome!

  ---

  Explanation/Reference:

  

• Question 329:

  Given:

  

  and the code fragment:

  

  What is the result?

  A. true:false:true
  B. false:true:true
  C. false:true:false
  D. true:true:false
  B. false:true:true

  ---

  Explanation/Reference:

  

• Question 330:

  Given the code fragment:

  

  What is the result?

  A. Match 1
  B. Match 2
  C. No Match
  D. A NullPointerException is thrown at runtime.
  A. Match 1

  ---

  Explanation/Reference: