Oracle 1Z0-808 Online Practice Questions and Exam Preparation

Oracle 1Z0-808 Online Questions & Answers

• Question 171:

  Given: What is the result?

  

  A. 0 Done
  B. First Exception Done
  C. Second Exception
  D. Done Third Exception
  E. Third Exception
  B. First Exception Done

• Question 172:

  Given the code fragment:

  

  What is the result?

  A. 11
  B. 10
  C. 12
  D. A compile time error occurs.
  C. 12

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  Explanation/Reference:

  

• Question 173:

  Given:

  

  What is the result?

  A. true true
  B. true false
  C. false true
  D. false false
  E. Compilation fails
  B. true false

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  Explanation/Reference:

• Question 174:

  Given:

  public class TestLoop {

  public static void main(String[] args) {

  int array[] = {0, 1, 2, 3, 4};

  int key = 3;

  for (int pos = 0; pos < array.length; ++pos) {

  if (array[pos] == key) {

  break;

  }

  }

  System.out.print("Found " + key + "at " + pos);

  }

  }

  What is the result?

  A. Found 3 at 2
  B. Found 3 at 3
  C. Compilation fails
  D. An exception is thrown at runtime
  C. Compilation fails

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  Explanation/Reference:

  The following line does not compile: System.out.print("Found " + key + "at " + pos);

  The variable pos is undefined at this line, as its scope is only valid in the for loop. Any variables created inside of a loop are LOCAL TO THE LOOP.

• Question 175:

  Given the code fragment:

  

  Which code snippet at line 9 prints true?

  

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

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  Explanation/Reference:

  

• Question 176:

  Given these requirements:

  1.

  Bus and Boat are Vehicle type classes.

  2.

  The start() and stop() methods perform common operations across the Vehicle class type.

  3.

  The ride() method performs a unique operations for each type of Vehicle.

  Which set of actions meets the requirements with optimized code?

  A. 1. Create an abstract class Vehicle by defining start() and stop() methods, and declaring the ride() abstract method. 2. Create Bus and Boat classes by inheriting the Vehicle class and overriding the ride() method.
  B. 1. Create an interface Vehicle by defining start() and stop() methods, and declaring the ride() abstract method. 2. Create Bus and Boat classes by implementing the Vehicle class.
  C. 1. Create an abstract class Vehicle by declaring stop(), start(), and ride() abstract methods. 2. Create Bus and Boat classes by inheriting the Vehicle class and overriding all the methods.
  D. 1. Create an interface Vehicle by defining default stop(), start(), and ride() methods. 2. Create Bus and Boat classes by implementing the Vehicle interface and overriding the ride() method.
  D. 1. Create an interface Vehicle by defining default stop(), start(), and ride() methods. 2. Create Bus and Boat classes by implementing the Vehicle interface and overriding the ride() method.

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  Explanation/Reference:

• Question 177:

  View the exhibit:

  public class Student {

  public String name = "";

  public int age = 0;

  public String major = "Undeclared";

  public boolean fulltime = true;

  public void display() {

  System.out.println("Name: " + name + " Major: " + major); }

  public boolean isFullTime() {

  return fulltime;

  }

  }

  Which line of code initializes a student instance?

  A. Student student1;
  B. Student student1 = Student.new();
  C. Student student1 = new Student();
  D. Student student1 = Student();
  C. Student student1 = new Student();

• Question 178:

  Given the code fragment:

  

  What is the result if the integer aVar is 9?

  A. 10 Hello World!
  B. Hello Universe!
  C. Hello World!
  D. Compilation fails.
  A. 10 Hello World!

• Question 179:

  Given:

  

  What is the result?

  A. Compilation fails.
  B. 11
  C. 8
  D. 9
  E. 10
  B. 11

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  Explanation/Reference:

  Answer is B.

  String s = "Java SE 8 1"; int len = s.trim().length(); System.out.print(len);

• Question 180:

  Given the code fragment:

  

  What is the result?

  A. 10 : 10
  B. 5 : 5
  C. 5 : 10
  D. Compilation fails
  A. 10 : 10

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  Explanation/Reference: