fun main(args: Array<String>) {
val StringCharacter = "A"
val CharCharacter = StringCharacter.toChar()
println(CharCharacter)
}
I am unable to convert string A to char. I know that StringCharacter = 'A' makes it char but I need the conversion.
Thanks.
A CharSequence (e.g. String) can be empty, have a single character, or have more than one character.
If you want a function that "returns the single character, or throws an exception if the char sequence is empty or has more than one character" then you want single:
val string = "A"
val char = string.single()
println(char)
And if you want to call single by a different name you can create your own extension function to do so:
fun CharSequence.toChar() = single()
Usage:
val string = "A"
val char = string.toChar()
println(char)
You cannot convert a String to a Char, because a String is an array of Chars. Instead, select a Char from the String:
val string = "A"
val character = string.get(0) // Or string[0]
println(character)
get(0) and [0] is the same in kotlin, so you can get the first character with string[0] which is more idiomaticA String cannot be converted to a Char because String is an array of chars. You can convert a String to an Char array or you can get a character from that String.
Example:
val a = "Hello"
val ch1 = a.toCharArray()[0] // output: H
val ch2 = a[0] // output: H
val c = StringCharacter[0]you will getStringIndexOutOfBoundsExceptionis String is empty