fun extractSubstring(str: String): String {
val startPos = str.indexOf('\'')
if (startPos != -1) {
val endPos = str.indexOf('\'', startPos + 1)
if (endPos != -1) {
return str.substring(startPos + 1, endPos)
}
}
return ""
}
fun main() {
val s = "Kotlin is a cross-platform, 'statically typed', general-purpose high-level"
val substring = extractSubstring(s)
println(substring)
}
/*
run:
statically typed
*/