Alex Tkachman
9 lines
182 B
Kotlin
9 lines
182 B
Kotlin
package pack
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open class A(val value: String )
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class B(value: String) : A(value) {
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fun toString() = "B($value)";
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}
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fun box() = if (B("4").toString() == "B(4)") "OK" else "fail" |