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To take the Oracle 1z1-808 (Java SE 8 Programmer I) Exam, candidates must have a basic understanding of Java programming language concepts, with some experience writing Java code. Candidates must also have a working knowledge of Java SE Development Kit (JDK), Java Development Environment (JDE), and Integrated Development Environment (IDE) tools. Java SE 8 Programmer I certification exam is recommended for developers, software engineers, and programmers who want to enhance their Java programming skills and add a credential to their resumes that validates their expertise.
Oracle 1z0-808 Certification Exam focuses on the fundamental concepts of Java programming, including data types, variables, arrays, control structures, and operators. It also covers the Object-Oriented Programming (OOP) concepts such as encapsulation, inheritance, and polymorphism. Additionally, the exam tests the candidates' knowledge of Java APIs and their ability to use them to create applications.
NEW QUESTION # 29
Given this class:
Which two changes would encapsulate this class and ensure that the area field is always equal to length * heightwhenever the Rectangle class is used?
- A. Change the area field to public.
- B. Call the setArea method at the beginning of the setLength method.
- C. Call the setArea method at the end of the setLength method.
- D. Call the setArea method at the beginning of the setHeight method.
- E. Change the setArea method to private.
- F. Call the setArea method at the end of the setHeight method.
Answer: E,F
NEW QUESTION # 30
Given:
What is the result?
- A. 200.0 : 100.0
- B. Compilation fails.
- C. 400.0 : 200.0
- D. 400.0 : 100.0
Answer: D
NEW QUESTION # 31
You are developing a banking module. You have developed a class named ccMask that has a maskcc method.
Given the code fragment:
You must ensure that the maskcc method returns a string that hides all digits of the credit card number except the four last digits (and the hyphens that separate each group of four digits).
Which two code fragments should you use at line n1, independently, to achieve this requirement? (Choose two.)
- A. Option B
- B. Option C
- C. Option A
- D. Option D
Answer: A,B
NEW QUESTION # 32
Consider following interface.
Which of the following will create instance of Runnable type?
- A. Runnable run = 0 -> System.outprintlnfRun");
- B. Runnable run = 0 > System.outprintlnfRun");
- C. Runnable run = 0 -> {System.out.println("Run");}
- D. None of the above.
- E. Runnable run = > System.ouLprintlnfRun"};
Answer: C
Explanation:
Option A is the correct answer.
To create we have used following method with LocalDate class;
public static LocalDate of(intyear, int month, intdayOfMonth)
Here we need to remember that month is not zero based so if you pass 1 for month, then
month will be January.
Then we have used period object of 1 day and add to date object which makes current date to next day, so final output is 2015-03-27. Hence option A is correct.
NEW QUESTION # 33
Given the following code:
What are the values of each element in intArr after this code has executed?
- A. 15, 60, 45, 90, 75
- B. 15, 30, 75, 60, 90
- C. 15, 30, 90, 60, 90
- D. 15, 90, 45, 90, 75
- E. 15, 4, 45, 60, 90
Answer: B
NEW QUESTION # 34
Given the code fragment:
What is the result?
- A. 0 2 4
- B. 0 2 4 6
- C. Compilation fails
- D. 2 4
Answer: A
NEW QUESTION # 35
Which three statements describe the object-oriented features of the Java language?
- A. A package must contain more than one class.
- B. Objects can share behaviors with other objects.
- C. A subclass can inherit from a superclass.
- D. Object is the root class of all other objects.
- E. A main method must be declared in every class.
- F. Objects cannot be reused.
Answer: B,C,E
NEW QUESTION # 36
Given the following two classes: How should you write methods in the ElectricAccount class at line n1 so that the member variable bill is always equal to the value of the member variable kwh multiplied by the member variable rate?
Any amount of electricity used by a customer (represented by an instance of the customer class) must contribute to the customer's bill (represented by the member variable bill) through the method useElectricity method. An instance of the customer class should never be able to tamper with or decrease the value of the member variable bill.
- A. Option B
- B. Option C
- C. Option D
- D. Option A
Answer: B,D
NEW QUESTION # 37
Given these requirements:
- Bus and Boat are Vehicle type classes.
- The start() and stop() methods perform common operations across the
Vehicle class type.
- 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 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. - B. 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. - C. 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 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.
Answer: A
NEW QUESTION # 38
Given:
The class is poorly encapsulated. You need to change the circle class to compute and return the area instead.
Which two modifications are necessary to ensure that the class is being properly encapsulated?
- A. Remove the area field.
- B. Change the cacess modifier of the SerRadius ( ) method to be protected.
- C. Add the following method:
public double getArea ( ) {area = Match.PI * radius * radius; } - D. Change the getArea( ) method as follows:
public double getArea ( ) { return Match.PI * radius * radius; }
Answer: B,D
NEW QUESTION # 39
Given:
What is the result?
- A. An exception is thrown at runtime.
- B. 10 20 30 40
- C. Compilation fails.
- D. 0 0 30 40
Answer: C
NEW QUESTION # 40
Given the definitions of the MyString class and the Test class:
What is the result?
- A. Option B
- B. Option C
- C. Option A
- D. Option D
Answer: B
NEW QUESTION # 41
Given:
And given the code fragment:
What is the result?
- A. 300:0
0:300 - B. 100:300
300:200 - C. 300:300
200:300 - D. 300:100
200:300
Answer: B
NEW QUESTION # 42
Given the code fragment:
What is the result?
- A. 0
- B. 1
- C. 2
- D. 3
- E. Compilation fails
Answer: E
Explanation:
Compilation fails with error ": expected" because we have three ternary operators but only two colons.
NEW QUESTION # 43
Given the code fragment:
What is the result?
- A. A Work done
- B. Compilation fails
- C. A B C D Work done
- D. A B C Work done
Answer: C
Explanation:
NEW QUESTION # 44
Given the code fragment:
What is the result?
- A. 5 : 10
- B. Compilation fails.
- C. 5 : 5
- D. 10 : 10
Answer: D
Explanation:
Explanation: References:
NEW QUESTION # 45
Given the definitions of the MyString class and the Test class:
What is the result?
- A.
- B. Compilation fails at the TestClass
- C.
- D.
Answer: C
NEW QUESTION # 46
Given the code fragment:
Assume that the system date is June 20, 2014. What is the result?
- A.
- B. A DateParseExceptionis thrown at runtime.
- C. Compilation fails.
- D.
Answer: A
NEW QUESTION # 47
Given:
And the code fragment:
Which code fragment, when inserted at line 14, enables the code to print Mike Found?
- A.
- B.
- C.
- D.
Answer: A
Explanation:
Explanation/Reference:
NEW QUESTION # 48
Given the code fragment:
What is the result?
- A. 2012-02-10
- B. A DateTimeException is thrown at runtime.
- C. 2012-01-30
- D. 2012-02-10 00:00
Answer: D
NEW QUESTION # 49
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 = new Student();
- B. Student student1;
- C. Student student1 = Student();
- D. Student student1 = Student.new();
Answer: A
NEW QUESTION # 50
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;
}
}
Given:
Public class TestStudent {
public static void main(String[] args) {
Student bob = new Student ();
bob.name = "Bob";
bob.age = 18;
bob.year = 1982;
}
}
What is the result?
- A. A runtime error is generated.
- B. bob.year is set to 1982
- C. year is set to 1982.
- D. A compile time error is generated.
Answer: D
NEW QUESTION # 51
Given the code fragment:
And given the requirements:
1. Process all the elements of the array in the reverse order of entry.
2. Process all the elements of the array in the order of entry.
3. Process alternating elements of the array in the order of entry.
Which two statements are true? (Choose two.)
- A. Requirement 3 CANNOT be implemented by using either the enhanced for loop or the standard for loop.
- B. Requirement 2 can be implemented by using the enhanced for loop.
- C. Requirements 1, 2, and 3 can be implemented by using the enhanced for loop.
- D. Requirements 1, 2, and 3 can be implemented by using the standard for loop.
- E. Requirements 2 and 3 CANNOT be implemented by using the standard for loop.
Answer: D,E
NEW QUESTION # 52
......
Oracle 1z0-808 exam consists of 70 multiple-choice questions that must be completed within 150 minutes. 1z0-808 exam is computer-based and can be taken at a Pearson VUE testing center. You can register for the exam online and choose a test center near you.
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Dumps Questions [2024] Pass for 1z0-808 Exam: https://drive.google.com/open?id=1ASkAZmIPd5tzQt-27MOtISpQidRYzMFa