// Type Annotation // // String val string: String = "Yasha Gozwan" // Character val char: Char = 'A' // Integer Numbers val byte: Byte = 122 val short: Short = 12_345 val int: Int = 1_234_567_891 val long: Long = 1_123_456_789_123_123_123L // Float Numbers val float: Float = 123.123F val double: Double = 123.123 // Boolean val isVerify: Boolean = false val isSuccess: Boolean = true 

// String val myStr = "Hello World" // uppercase and lowercase val upper = myStr.uppercase() val lower = myStr.lowercase() // Get length // length val myLength = myStr.length // getting first and last character val firstChar = myStr[0] val lastChar = myStr[myStr.length - 1] 

// String Interpolation val name = "Yasha" val age = 26 println("Hello everyone. My name is $name and i $age old thanks")