[Solved] Identify the issue in this Kotlin function declaration:fun showDetails(age: Int, city: String = "Unknown") { println("Age: $age, City: $city") } showDetails() | Kotlin

Kotlin - Functions

Identify the issue in this Kotlin function declaration:

fun showDetails(age: Int, city: String = "Unknown") {
    println("Age: $age, City: $city")
}
showDetails()

ANo issues, code runs fine

BDefault parameter 'city' must come before 'age'

CFunction cannot have default parameters

DFunction call missing required argument 'age'

Step-by-Step Solution

Solution:

Step 1: Analyze function parameters
Parameter 'age' has no default value, so it is required.
Step 2: Analyze function call
Calling showDetails() without arguments misses the required 'age' parameter.
Final Answer:
Function call missing required argument 'age' -> Option D
Quick Check:
Required parameters must be provided in call [OK]

Quick Trick: Required params must be passed, defaults optional [OK]

Common Mistakes:

MISTAKES

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