Andrey Breslav
34 lines
798 B
Plaintext
34 lines
798 B
Plaintext
Classes can be nested in other classes:
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{jet}
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class Outer() {
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private val bar : Int = 1
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class Nested() {
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fun foo() = 2
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}
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}
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val demo = Outer.Inner().foo() // == 2
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{jet}
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h3. Inner classes
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A class may be marked as *inner* to be able to access members of outer class. Inner classes carry a reference to an object of an outer class:
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{jet}
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class Outer() {
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private val bar : Int = 1
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inner class Inner() {
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fun foo() = bar
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}
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}
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val demo = Outer().Inner().foo() // == 1
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{jet}
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See [Qualified *this* expressions|This expressions#Qualified] to learn about disambiguation of *this* in inner classes.
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{note:title=Inner classes are under development}See the corresponding [issue|http://youtrack.jetbrains.com/issue/KT-1174].{note}
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h3. What's next
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* [Object expressions and Declarations] |