Mastering Kotlin

Property assignments and initializer blocks

After any primary constructor properties, the next initialization will occur in class-level property assignments and in initializer blocks. These will occur in the order in which they are defined within the class.

In the following snippet, we are initializing four properties, which we will examine to better understand the initialization sequence:

class Student(_firstName: String, val lastName: String) {    val firstName = _firstName    val id: String    var nickname = ""    init {        id = generateStudentId(firstName, lastName)    }    val subjects:MutableList<String> = mutableListOf()}

In the preceding example, after lastName is initialized, the properties will be initialized in the following order:

• firstName
• nickname ...