[Solved] Identify the error in this Kotlin code snippet:var greeting = "Hi" greeting[0] = 'B' println(greeting) | Kotlin

Kotlin - Data Types

Identify the error in this Kotlin code snippet:

var greeting = "Hi"
greeting[0] = 'B'
println(greeting)

Aprintln cannot print Strings.

BVariable greeting should be val, not var.

CSingle quotes cannot be used for characters.

DYou cannot change characters in a String by index.

Step-by-Step Solution

Solution:

Step 1: Check String mutability rules
Kotlin Strings are immutable; you cannot assign to an index.
Step 2: Analyze the code line causing error
Line greeting[0] = 'B' tries to change a character, which is invalid.
Final Answer:
You cannot change characters in a String by index. -> Option D
Quick Check:
Strings immutable = no index assignment [OK]

Quick Trick: Strings are like frozen text, can't change letters inside [OK]

Common Mistakes:

MISTAKES

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