Kotlin - Null Safety
What happens when you try to assign null to a non-nullable variable in Kotlin?
var count: Int = null
What happens when you try to assign null to a non-nullable variable in Kotlin?
medium📝 Predict Output Q5 of 15
Step-by-Step Solution
Solution:
Step 1: Understand non-nullable variable rules
Non-nullable variables cannot be assigned null values.Step 2: Check assignment of null to non-nullable Int
Assigning null tocountcauses a compilation error.Final Answer:
Compilation error -> Option BQuick Check:
Assigning null to non-nullable = Compilation error [OK]
Quick Trick: Non-nullable variables reject null at compile time [OK]
Common Mistakes:
MISTAKES- Expecting runtime exception
- Assuming variable becomes zero
Master "Null Safety" in Kotlin
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