[Solved] Which of the following is a reason to use wrapper classes in Java? — Ans: To store primitive values in data structures like ArrayList | Java

Java - Wrapper Classes

Which of the following is a reason to use wrapper classes in Java?

ATo perform arithmetic faster than primitives

BTo make primitive types thread-safe

CTo avoid using primitive types altogether

DTo store primitive values in data structures like ArrayList

Step-by-Step Solution

Solution:

Step 1: Identify limitations of primitives in collections
Primitive types cannot be stored directly in collections like ArrayList which require objects.
Step 2: Use of wrapper classes
Wrapper classes allow primitive values to be wrapped as objects so they can be stored in collections.
Final Answer:
To store primitive values in data structures like ArrayList -> Option D
Quick Check:
Wrappers enable primitives in collections = B [OK]

Quick Trick: Wrappers let primitives go into collections like ArrayList [OK]

Common Mistakes:

Master "Wrapper Classes" in Java

9 interactive learning modes - each teaches the same concept differently

More Java Quizzes

Which of the following is a reason to use wrapper classes in Java?