27 lines
806 B
Kotlin
27 lines
806 B
Kotlin
// version 1.1.0
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// constant top level property
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const val N = 5
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// read-only top level property
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val letters = listOf('A', 'B', 'C', 'D', 'E') // 'listOf' creates here a List<Char) which is immutable
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class MyClass { // MyClass is effectively immutable because it's only property is read-only
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// and it is not 'open' so cannot be sub-classed
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// read-only class property
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val myInt = 3
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fun myFunc(p: Int) { // parameter 'p' is read-only
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var pp = p // local variable 'pp' is mutable
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while (pp < N) { // compiler will change 'N' to 5
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print(letters[pp++])
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}
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println()
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}
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}
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fun main(args: Array<String>) {
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val mc = MyClass() // 'mc' cannot be re-assigned a different object
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println(mc.myInt)
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mc.myFunc(0)
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}
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