Jinseong Jeon
22 lines
371 B
Kotlin
Vendored
22 lines
371 B
Kotlin
Vendored
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open class Base<T> {
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open fun f(x: T): String {
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return "Fail"
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}
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}
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abstract class Derived : Base<String>() {
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abstract override fun f(x: String): String
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}
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class Implementation : Derived() {
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override fun f(x: String): String {
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return x
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}
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}
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fun box(): String {
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val base = Implementation() as Base<String>
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return base.f("OK")
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}
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