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Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Feedback

Structural and Behavioural Patterns

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Beginner

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1. What is the main objective of Structural Design Patterns?

a: To create new objects Explanation

Explanation

b: To form larger structures using existing objects Explanation

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c: To remove unnecessary objects Explanation

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d: None of the above Explanation

Explanation

2. Which of the following is a type of Structural Pattern?

a: Decorator pattern Explanation

Explanation

b: Iterator pattern Explanation

Explanation

c: Behavioral pattern Explanation

Explanation

d: Factory pattern Explanation

Explanation

3. What is the purpose of the Decorator pattern?

a: To remove objects from the system Explanation

Explanation

b: To add new functionality to an existing object without altering its structure Explanation

Explanation

c: To create new objects Explanation

Explanation

d: None of the above Explanation

Explanation

4. What is the key difference between compile-time and runtime polymorphism in Java?

a: Compile-time polymorphism is implemented using method overriding, while runtime polymorphism is implemented using method overloading. Explanation

Explanation

b: Compile-time polymorphism is determined during compilation, while runtime polymorphism is resolved at runtime. Explanation

Explanation

c: Runtime polymorphism is faster than compile-time polymorphism. Explanation

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d: Compile-time polymorphism is achieved using interfaces. Explanation

Explanation

5. Which of the following statements about method overloading is true?

a: Method overloading occurs only in different classes. Explanation

Explanation

b: Method overloading is achieved by changing the method name. Explanation

Explanation

c: Method overloading allows multiple methods with the same name but different parameters. Explanation

Explanation

d: Overloaded methods must have the same return type. Explanation

Explanation

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