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Swift program to swap array elements using swapAt() function

Here, we are going to learn how to swap array elements using swapAt() function in Swift programming language?
Submitted by Nidhi, on June 17, 2021

Problem Solution:

Here, we will create an array of integers and swap array elements using the swapAt() function and printed the updated array on the console screen.

Program/Source Code:

The source code to swap array elements using the swapAt() function is given below. The given program is compiled and executed successfully.

// Swift program to swap array elements using
// swapAt() function

import Swift

var arr:[Int] = [12,10,25,20,50]

print("Array before swapping: ",arr)

arr.swapAt(2,4)

print("Array after swapping: ",arr)

Output:

Array before swapping:  [12, 10, 25, 20, 50]
Array after swapping:  [12, 10, 50, 20, 25]

...Program finished with exit code 0
Press ENTER to exit console.

Explanation:

In the above program, we imported a package Swift to use the print() function using the below statement,

import Swift;

Here, we created an integer array arr. Then we used the swapAt() function to swap two array elements using the swapAt() function based on an index. After that, we printed an updated array on the console screen.

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