Understanding generics

Understanding generics

Professional Development

28 Qs

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 Understanding generics

Understanding generics

Assessment

Quiz

Computers

Professional Development

Practice Problem

Hard

Created by

ANIL KUMAR

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28 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How to understand Java Generics?

A. Implementing runtime type checks.
B. Defining unrelated methods and classes.
C. Enabling compile-time type safety.
D. Overriding default Java methods.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What it means by generics in Java?

A. Involves unrelated methods/types.
B. Includes only primitive data types.
C. Involves related methods/types.
D. Supports only Integer and String.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why generics are safe in Java?

A. Allow runtime errors for flexibility.
B. Improve code readability.
C. Ensure type safety and code reusability.
D. Increase runtime error occurrence.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is wildcard in Java generic?

A. A character used in comments.
B. A symbol representing known types.
C. A symbol representing unknown types.
D. A special class for type conversion.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main aim of generics in Java?

A. Enabling runtime casting.
B. Avoiding generic algorithms.
C. Eliminating code reusability.
D. Ensuring stronger type-checking.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How generics works internally in Java?

A. Focus on runtime type errors.
B. Prevent ClassCastException at runtime.
C. Provide dynamic type resolution.
D. Optimize code execution.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is generics and types?

A. Specific to single data type.
B. Applied only to classes.
C. Parameterized classes/interfaces.
D. Suitable for primitive types.

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