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30 lines
655 B
Kotlin
30 lines
655 B
Kotlin
fun isDigit(a: Int) : String {
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val aa = java.util.ArrayList<Int> ()
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aa.add(239)
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return when(a) {
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in aa -> "array list"
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in 0..9 -> "digit"
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!in 0..100 -> "not small"
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else -> "something"
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}
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}
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fun assertDigit(i: Int, expected: String): String {
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val result = isDigit(i)
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return if (result == expected) "" else "fail: isDigit($i) = \"$result\""
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}
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fun box(): String {
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val result =
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assertDigit(239, "array list") +
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assertDigit(0, "digit") +
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assertDigit(9, "digit") +
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assertDigit(5, "digit") +
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assertDigit(19, "something") +
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assertDigit(190, "not small")
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if (result == "") return "OK"
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return result
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}
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