[Solved] Identify the error in this Swift code:var number: Int? print(number + 5) — Ans: Cannot add Int? and Int directly | iOS Swift

iOS Swift - Swift Language Essentials

Identify the error in this Swift code:

var number: Int?
print(number + 5)

ACannot add Int? and Int directly

BMissing semicolon

CVariable number not declared

DNo error, code runs fine

Step-by-Step Solution

Solution:

Step 1: Understand type mismatch
number is an Optional Int, cannot be added directly to Int without unwrapping.
Step 2: Identify correct error
Cannot add Int? and Int directly correctly states the problem. Semicolons are optional in Swift. Variable is declared. Code will not run fine.
Final Answer:
Cannot add Int? and Int directly -> Option A
Quick Check:
Optional must be unwrapped before arithmetic [OK]

Quick Trick: Unwrap optionals before arithmetic operations [OK]

Common Mistakes:

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