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To find the length of a string in Kotlin, you can simply call the `length` property on the string variable. For example:
val str = "Hello, world!"
val length = str.length
println("The length of the string is $length")
In this example, we create a string variable `str` with the value “Hello, world!” and then call the `length` property on it to find its length. We then print the length using string interpolation.
It’s important to note that the `length` property returns the number of characters in the string, including spaces and punctuation.
In addition to finding the length of a string, you can also perform other operations on strings in Kotlin, such as concatenation and substring extraction. With these tools, you can manipulate strings to fit your specific needs in your Kotlin application.