How to check if string ends with Specified suffix string in Kotlin?

In this tutorial, you shall learn how to check if given string ends with a specific suffix string in Kotlin, using String.endsWith() function, with examples.

Kotlin – Check if string ends with a specific suffix

To check if String ends with specified string value in Kotlin, use String.endsWith() method.

Given a string str1, and if we would like to check if this string ends with the string str2, call endsWith() method on string str1 and pass the string str2 as argument to the method as shown below.

str1.endsWith(str2)

endsWith() method returns a boolean value of true if the string str1 ends with the string str2, or false if not.

Examples

1. Check if string ends with “efg”

In this example, we will take a string in str1, and check if it ends with the value in the string str2 using String.endsWith() method.

Kotlin Program

fun main(args: Array<String>) {
    val str1 = "abcdefg"
    val str2 = "efg"
    val result = str1.endsWith(str2)
    println("endsWith() returns  : " + result)
    if( result ) {
        println("String ends with specified string.")
    } else {
        println("String does not end with specified string.")
    }
}

Output

endsWith() returns  : true
String ends with specified string.

2. Negative Scenario

In this example, we will take a string in str1, and check if it ends with the value in string str2 using String.endsWith() method.

Kotlin Program

fun main(args: Array<String>) {
    val str1 = "abcdefg"
    val str2 = "mno"
    val result = str1.endsWith(str2)
    println("endsWith() returns  : " + result)
    if( result ) {
        println("String ends with specified string.")
    } else {
        println("String does not end with specified string.")
    }
}

Since, we have taken string values in str1 and str2 such that str1 does not end with specified string value str2, the method returns false.

Output

endsWith() returns  : false
String does not end with specified string.

Conclusion

In this Kotlin Tutorial, we learned how to check if the given string ends with specified string value, using String.endsWith() method, with the help of Kotlin example programs.