Web Services Development MCQs with Answers
Practice important Web Services Development MCQs with answers and explanations.
Multiple Choice Questions
Q211: What is the primary difference between field variables and instance variables?
- A: Field variables are declared in methods, instance variables in class bodies
- B: Field variables are associated with an object, instance variables are shared among all objects
- C: Field variables are accessible within a class, instance variables are accessible across the entire application
- D: Field variables are specific to the instance of the class, instance variables are shared among all instances
View Answer
B
Q212: Which type of constructor has no parameters?
- A: Default constructor
- B: Parameterized constructor
- C: Static constructor
- D: Instance constructor
View Answer
A
Q213: What must be true about the name of a constructor?
- A: It must be different from the class name
- B: It must be the same as the class name
- C: It must be a keyword
- D: It must be unique within the class
View Answer
B
Q214: Fill in the blank: When a method is called, the formal parameter is temporarily bound to the ________ parameter.
- A: default
- B: actual
- C: static
- D: class
View Answer
B
Q215: Fill in the blank: Static variables are initialized during the ________ of the class.
- A: execution
- B: creation
- C: loading
- D: destruction
View Answer
C
Q216: Which statement is true about a parameterized constructor?
- A: It has no parameters
- B: It can be used to initialize object data with specific values
- C: It is invoked at the time of object creation without arguments
- D: It provides default values to the object
View Answer
B
Q217: Fill in the blank: The keyword 'static' indicates that a variable is ________ across all instances of a class.
- A: unique
- B: shared
- C: local
- D: private
View Answer
B
Q218: What is the primary advantage of abstraction in programming?
- A: Separates code into different files
- B: Reduces code duplication
- C: Allows for more complex code structures
- D: Simplifies domain model representation
View Answer
B
Q219: Which of the following is NOT a principle of abstraction?
- A: Avoiding duplication
- B: Representing objects before implementation
- C: Using multiple inheritance
- D: Creating reusable components
View Answer
C
Q220: Abstraction helps in refactoring code by making it _______.
- A: Extensible
- B: Complex
- C: Hard to understand
- D: Monolithic
View Answer
A