Looking to get a head start on your next software interview? Pickup a copy of the best book to prepare: Cracking The Coding Interview!
To use `toLocaleUpperCase()` in Kotlin, first create a `Locale` object with the desired locale. This can be done using the `Locale` constructor, which takes two arguments: the language code and the country code. For example, to create a `Locale` object for English in the United States, use the following code:
val locale = Locale("en", "US")
Once you have a `Locale` object, you can call the `toLocaleUpperCase()` method on a string to convert it to uppercase based on that locale. For example, to convert the string “hello” to uppercase in English, use the following code:
val uppercaseString = "hello".toLocaleUpperCase(locale)
This will set the `uppercaseString` variable to the value “HELLO”.
It’s important to note that `toLocaleUpperCase()` only works with certain languages and locales. If you try to use it with a language or locale that doesn’t support it, you may get unexpected results. Additionally, `toLocaleUpperCase()` only works with Unicode characters, so it may not work as expected with non-Unicode characters.
In summary, `toLocaleUpperCase()` is a useful method for converting strings to uppercase based on the user’s locale. To use it in Kotlin, create a `Locale` object with the desired locale and call the method on a string.