[Solved] Consider the following Swift code:struct Point { var x: Int var y: Int } var p1 = Point(x: 1, y: 2) var p2 = p1 p2.x = 5 print(p1.x)What will be printed? | iOS Swift

iOS Swift - Swift Language Essentials

Consider the following Swift code:

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

var p1 = Point(x: 1, y: 2)
var p2 = p1
p2.x = 5
print(p1.x)

What will be printed?

A1

B5

C0

DCompilation error

Step-by-Step Solution

Solution:

Step 1: Understand struct copying behavior
Since Point is a struct (value type), assigning p1 to p2 copies the data. They are independent.
Step 2: Analyze mutation and print
Changing p2.x to 5 does not affect p1.x. So p1.x remains 1. The print statement outputs 1.
Final Answer:
1 -> Option A
Quick Check:
Structs copy on assignment, so original stays unchanged [OK]

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

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