Download Java SE 8 Programmer.1z0-808.RealTests.2019-10-23.93q.vcex
| Vendor: | Oracle |
| Exam Code: | 1z0-808 |
| Exam Name: | Java SE 8 Programmer |
| Date: | Oct 23, 2019 |
| File Size: | 6 MB |
| Downloads: | 1 |
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Demo Questions
Question 1
Given:
What is the result?
- 200.0 : 100.0
- 400.0 : 200.0
- 400.0 : 100.0
- Compilation fails.
Correct answer: C
Question 2
Given the following segment of code :
Which two statements, if either were true, would make the code compile? (Choose two.)
- Vehicle is an interface that is implemented by the Motorcycle class.
- Vehicle and Motorcycle both implement the Transportation interface
- Vehicle is a superclass of Motorcycle.
- Motorcycle is a superclass of Vehicle.
- Vehicle and Motorcycle both extend the Transportation superclass.
- Motorcycle is an interface that implements the Vehicle class.
Correct answer: AC
Question 3
What is the name of the Java concept that uses access modifiers to protect variables and hide them within a class?
- Encapsulation
- Inheritance
- Abstraction
- Instantiation
- Polymorphism
Correct answer: A
Explanation:
Using the private modifier is the main way that an object encapsulates itself and hide data from the outside world. Reference: http://www.tutorialspoint.com/java/java_access_modifiers.htm Using the private modifier is the main way that an object encapsulates itself and hide data from the outside world.
Reference: http://www.tutorialspoint.com/java/java_access_modifiers.htm
Question 4
Given:
And given the code fragment:
What is the result?
- 4W 100 Auto4W 150 Manual
- Null 0 Auto4W 150 Manual
- Compilation fails only at line n1
- Compilation fails only at line n2
- Compilation fails at both line n1 and line n2
Correct answer: C
Question 5
Given:
Which code fragment should you use at line n1 to instantiate the dvd object successfully?
- Option A
- Option B
- Option C
- Option D
Correct answer: C
Question 6
Given the code fragment:
Which option can replace xxx to enable the code to print 135?
Correct answer: B
Question 7
Which statement best describes encapsulation?
- Encapsulation ensures that classes can be designed so that only certain fields and methods of an object are accessible from other objects.
- Encapsulation ensures that classes can be designed so that their methods are inheritable.
- Encapsulation ensures that classes can be designed with some fields and methods declared as abstract.
- Encapsulation ensures that classes can be designed so that if a method has an argument MyType x, any subclass of MyType can be passed to that method.
Correct answer: A
Question 8
Given the code fragment from three files:
Which code fragment, when inserted at line 2, enables the code to compile?
- Option A
- Option B
- Option C
- Option D
- Option E
Correct answer: E
Question 9
Given the following class:
And given the following main method, located in another class:
Which three lines, when inserted independently at line n1, cause the program to print a 0 balance? (Choose three.)
- this.amount = 0;
- amount = 0;
- acct (0);
- acct.amount = 0;
- acct. getAmount () = 0;
- acct.changeAmount(0);
- acct.changeAmount(-acct.amount);
- acct.changeAmount(-acct.getAmount());
Correct answer: DGH
Question 10
Given the code fragment:
Which modification enables the code to print 54321?
- Replace line 6 with System.out. print (--x) ;
- At line 7, insert x --;
- Replace line 6 with --x; and, at line 7, insert System.out.print (x);
- Replace line 12 with return (x > 0) ? false: true;
Correct answer: B
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