To Check String is Palindrome in Kotlin

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To check if a string is a palindrome or not, we need to compare the original string with its reversed form. If both strings are the same, the original string is a palindrome.

Here’s an example Kotlin code to check if a string is a palindrome:

Kotlin
fun isPalindrome(str: String): Boolean {
    val reversedStr = str.reversed()
    return str == reversedStr
}

In this code, the isPalindrome function takes a String parameter str and returns true if str is a palindrome, and false otherwise. The function first creates a new string reversedStr that is the reverse of str, using the reversed() method. The function then compares str with reversedStr and returns true if they are equal, and false otherwise.

Kotlin
fun isPalindrome(str: String): Boolean {
    val reversedStr = str.reversed()
    return str == reversedStr
}
fun main() {
    val str1 = "racecar"
    val str2 = "hello"
    println("$str1 is palindrome: ${isPalindrome(str1)}")
    println("$str2 is palindrome: ${isPalindrome(str2)}")
}

In this code, we create two strings str1 and str2, with the values “racecar” and “hello”, respectively. We then call the isPalindrome function to check if each string is a palindrome, and print the results to the console. The output will be:

racecar is palindrome: true
hello is palindrome: false

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