Alex Tkachman
20 lines
456 B
Kotlin
20 lines
456 B
Kotlin
trait TextField {
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fun getText(): String
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fun setText(text: String)
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}
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class SimpleTextField : TextField {
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private var text = ""
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override fun getText() = text
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override fun setText(text: String) {
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this.text = text
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}
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}
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class TextFieldWrapper(textField: TextField) : TextField by textField
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fun box() : String {
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val textField = TextFieldWrapper(SimpleTextField())
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textField.setText("OK")
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return textField.getText()
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} |