Oracle 1Z0-808 Online Practice Questions and Exam Preparation

Oracle 1Z0-808 Online Questions & Answers

• Question 281:

  Given the code fragment:

  

  Which modification enables the code to print 54321?

  A. Replace line 6 with System.out.print (--x);
  B. At line 7, insert x --;
  C. Replace line 5 with while (is Available(--x)) {
  D. Replace line 12 with return (x > 0) ? false : true;
  A. Replace line 6 with System.out.print (--x);

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  Explanation/Reference:

  Answer is A.

  public class Test {

  public static void main(String[] args) {

  int x = 6;

  while (isAvailable(x)) {

  System.out.print(x); // Replace this, by Option A "System.out.print (--x);"

  }

  }

  public static boolean isAvailable(int x) {

  return --x > 0 ? true : false;

  }

  }

• Question 282:

  Given: What is the result?

  

  A. null:null:0.0
  B. null:null
  C. :0.0
  D. null:0.0
  D. null:0.0

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  Explanation/Reference:

  

• Question 283:

  Given the code fragment:

  

  You want the code to print:

  Sold: 5 items. Stock in Hand: 5

  Purchased: 5 items. Stock in Hand: 10?

  Which action enables the code to print this?

  A. Declare the stock variable and the purchase(), sell(), and printStock() methods static.
  B. Declare the stock variable and the printStock() method static.
  C. Declare the stock and qty variables and the printStock() method static.
  D. Declare the stock variable static.
  C. Declare the stock and qty variables and the printStock() method static.

• Question 284:

  Given:

  

  What is the result?

  A. 2 4 6 8 10 12
  B. 2 4 6 8 10 12 14
  C. Compilation fails
  D. The program prints multiple of 2 infinite times
  E. The program prints nothing
  B. 2 4 6 8 10 12 14

• Question 285:

  Given the code fragment:

  

  Which code fragment, when inserted at line 9, enables the code to print true?

  A. String str2 = str1;
  B. String str2 = new String (str1);
  C. String str2 = sb1. toString ();
  D. String str2 = "Duke";
  A. String str2 = str1;

• Question 286:

  Given:

  

  A. a, e i, i
  B. a, e o, o
  C. e, e i, i
  D. a, a o, o
  A. a, e i, i

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  Explanation/Reference:

• Question 287:

  Given the code fragment:

  

  What is the result if the integer aVar is 9?

  A. 10 Hello world!
  B. 10 Hello universe!
  C. 9 Hello world!
  D. Compilation fails.
  B. 10 Hello universe!

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  Explanation/Reference:

• Question 288:

  public class ForTest {

  public static void main(String[] args) {

  int[] arrar = {1,2,3};

  for ( foo ) {

  }

  }

  }

  Which three are valid replacements for foo so that the program will compiled and run?

  A. int i: array
  B. int i = 0; i < 1; i++
  C. ;;
  D. ; i < 1; i++
  E. ; i < 1;
  A. int i: array
  B. int i = 0; i < 1; i++
  C. ;;

• Question 289:

  Given the following segment of code :

  

  Which two statements, if either were true, would make the code compile?

  A. Vehicle is an interface that is implemented by the Motorcycle class.
  B. Vehicle and Motorcycle both implement the Transportation interface
  C. Vehicle is a superclass of Motorcycle.
  D. Motorcycle is a superclass of Vehicle.
  E. Vehicle and Motorcycle both extend the Transportation superclass.
  F. Motorcycle is an interface that implements the Vehicle class.
  C. Vehicle is a superclass of Motorcycle.
  E. Vehicle and Motorcycle both extend the Transportation superclass.

• Question 290:

  Given:

  public class Test {

  static boolean bVar;

  public static void main(String[] args) {

  boolean bVar1 = true;

  int count =8;

  do {

  System.out.println("Hello Java! " +count);

  if (count >= 7) {

  bVar1 = false;

  }

  } while (bVar != bVar1 andand count > 4);

  count -= 2;

  }

  }

  What is the result?

  A. Hello Java! 8 Hello Java! 6 Hello Java! 4
  B. Hello Java! 8 Hello Java! 6
  C. Hello Java! 8
  D. Compilation fails
  C. Hello Java! 8

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  Explanation/Reference:

  Hello Java! 8