[Solved] What will be the output of the following Kotlin code?val cities = listOf("Paris", "Rome", "Oslo") cities.forEach { println(it.first()) } | Kotlin

Kotlin - Collections Fundamentals

What will be the output of the following Kotlin code?

val cities = listOf("Paris", "Rome", "Oslo")
cities.forEach { println(it.first()) }

AParis Rome Oslo

B[P, R, O]

CP R O

DError: first() is not a function

Step-by-Step Solution

Solution:

Step 1: Understand the code
The list contains strings: "Paris", "Rome", "Oslo".
Step 2: forEach with println(it.first())
For each string, it.first() returns the first character.
Step 3: Output
Printing first characters results in:
P
R
O
Final Answer:
P R O -> Option C
Quick Check:
String.first() returns first character [OK]

Quick Trick: first() gets first char of string elements [OK]

Common Mistakes:

MISTAKES

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