Swift String Exercises: Move the last two characters of a given string to the start

Last update on June 14 2025 13:04:52 (UTC/GMT +8 hours)

Write a Swift program to move the last two characters of a given string to the start. The given string length must be at least 2.

Pictorial Presentation:

Sample Solution:

Swift Code:

func last_to_first(_ str1: String) -> String {
    var chars = str1.characters
    let last_char = chars.removeLast()
    let rest_part = chars.removeLast()
    chars.insert(last_char, at: chars.startIndex)
    chars.insert(rest_part, at: chars.startIndex)
    
    return String(chars)
}
print(last_to_first("Swift"))
print(last_to_first("Python"))

Sample Output:

ftSwi
onPyth

Go to:

• Swift String Programming Exercises Home ↩
• Swift Programming Exercises Home ↩

PREV : Write a Swift program to move the first two characters of a given string to the end. The given string length must be at least 2.
NEXT : Write a Swift program to create a new string without the first and last character of a given string. The string may be any length, including 0.

Swift Programming Code Editor:

Improve this sample solution and post your code through Disqus