[Solved] What will be printed by this Swift code?struct Point { var x: Int var y: Int } var p1 = Point(x: 1, y: 2) var p2 = p1 p2.x = 10 print(p1.x) | iOS Swift

iOS Swift - Swift Language Essentials

What will be printed by this Swift code?

struct Point {
  var x: Int
  var y: Int
}

var p1 = Point(x: 1, y: 2)
var p2 = p1
p2.x = 10
print(p1.x)

A10

BCompilation error

C0

D1

Step-by-Step Solution

Solution:

Step 1: Understand struct assignment behavior
Structs are value types, so p2 is a copy of p1.
Step 2: Analyze mutation effect
Changing p2.x does not affect p1.x, so p1.x remains 1.
Final Answer:
1 -> Option D
Quick Check:
Struct copy means original unchanged = B [OK]

Quick Trick: Structs copy on assignment; changes don't affect original [OK]

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