[Solved] Identify the error in this code snippet:int x = null; Integer y = x; — Ans: Cannot assign null to primitive int | Java

Java - Wrapper Classes

Identify the error in this code snippet:

int x = null;
Integer y = x;

ACannot assign int to Integer

BCannot assign null to primitive int

CNo error, code compiles fine

DCannot assign Integer to int

Step-by-Step Solution

Solution:

Step 1: Understand null assignment rules
Primitive types like int cannot hold null values; only objects can.
Step 2: Identify error
Assigning null to int x causes a compilation error.
Final Answer:
Cannot assign null to primitive int -> Option B
Quick Check:
Primitive int cannot be null [OK]

Quick Trick: Primitives cannot be null, only wrapper objects can [OK]

Common Mistakes:

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