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kotlinlang

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`.