newbie question! Hello! please tell me how can I add char to string?

hi, you should be able to use the plus operator

val someString = "abc"
val someChar = 'c'
val result = someString + someChar
//or better, string template
val result = "$someString$someChar"

but if i need use something like someString +=someChar? add char to existing string

then you need to declare the existing string as mutable -

var

, not

val

tnx, i thought i need to use something like

stringbuilder

for this

If you're going to do this often (eg in a loop) it would be better to use a stringbuilder indeed.

Strings in Kotlin are immutable sequences of characters, just like in Java. Adding a new character to a string (with

+

or using the string template syntax) always results in a new String instance being created. If you need a mutable sequence of characters, you should use

StringBuilder

.