[Solved] What happens when you assign an int value directly to an Integer variable in Java? — Ans: The int is automatically converted to an Integer object using autoboxing. | Java

Java - Wrapper Classes

What happens when you assign an int value directly to an Integer variable in Java?

AA compile-time error occurs because types are incompatible.

BThe program throws a runtime exception.

CThe <code>Integer</code> variable stores the primitive <code>int</code> value directly.

DThe <code>int</code> is automatically converted to an <code>Integer</code> object using autoboxing.

Step-by-Step Solution

Solution:

Step 1: Understand autoboxing concept
Autoboxing automatically converts primitive types like int to their wrapper classes like Integer.
Step 2: Assigning int to Integer
When you assign an int to an Integer, Java wraps the primitive into an object automatically.
Final Answer:
The int is automatically converted to an Integer object using autoboxing. -> Option D
Quick Check:
Autoboxing = automatic primitive to wrapper conversion [OK]

Quick Trick: Autoboxing wraps primitives automatically when assigned to wrapper types [OK]

Common Mistakes:

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What happens when you assign an int value directly to an Integer variable in Java?