[Solved] Identify the error in this Kotlin code snippet:val text: String? = null text.let { println(it.length) } | Kotlin

Kotlin - Null Safety

Identify the error in this Kotlin code snippet:

val text: String? = null
text.let { println(it.length) }

AIt prints 0 because null is treated as empty string.

BIt compiles but does not print anything.

CIt throws NullPointerException because safe call is missing.

DIt prints 'null' as a string.

Step-by-Step Solution

Solution:

Step 1: Check safe call usage
The code uses text.let without ?., so it runs even if text is null.
Step 2: Understand null dereference
Inside the lambda, it.length is called on null, causing a NullPointerException.
Final Answer:
It throws NullPointerException because safe call is missing. -> Option C
Quick Check:
Missing ?. causes null error [OK]

Quick Trick: Always use ?.let to avoid null errors [OK]

Common Mistakes:

MISTAKES

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