Strings

Strings in Kotlin

Kotlin strings support string templates — embed variables or expressions directly inside a string using $:

val name = "World"
println("Hello, $name!")           // Hello, World!
println("Length: ${name.length}") // Length: 5

Use $identifier for simple variables and ${expression} for any expression.

Common string methods:

Method	Description
`.length`	Number of characters
`.uppercase()`	Convert to uppercase
`.lowercase()`	Convert to lowercase
`.contains("x")`	Check if string contains substring
`.trim()`	Remove leading/trailing whitespace

Given val city = "Berlin", print the city name, its length, and its uppercase version.

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