Kotlin - Variables and Type System
Which of the following is the correct syntax to declare a mutable integer variable
score initialized to 0 in Kotlin?Which of the following is the correct syntax to declare a mutable integer variable score initialized to 0 in Kotlin?
easy📝 Syntax Q3 of 15
Step-by-Step Solution
Solution:
Step 1: Review Kotlin variable declaration syntax
To declare a mutable variable with explicit type, usevar variableName: Type = value. var score: Int = 0 matches this.Step 2: Identify incorrect options
val score = 0 usesval(immutable), var score = Int 0 has invalid syntax, mutable score = 0 uses a non-existent keyword.Final Answer:
var score: Int = 0 -> Option CQuick Check:
Correct syntax = B [OK]
Quick Trick: Use var name: Type = value for explicit mutable vars [OK]
Common Mistakes:
MISTAKES- Using val instead of var for mutable variables
- Incorrect type declaration syntax
- Using invalid keywords like mutable
Master "Variables and Type System" in Kotlin
Want More Practice?
15+ quiz questions · All difficulty levels · Free
Free Signup - Practice All QuestionsMore Kotlin Quizzes