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22 lines
511 B
Plaintext
22 lines
511 B
Plaintext
import java.util.*
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fun <T> ArrayList<T>.findAll(predicate: fun (T) : Boolean): ArrayList<T> {
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val result = ArrayList<T>()
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for(val t in this) {
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if (predicate(t)) result.add(t)
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}
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return result
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}
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fun box(): String {
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val list: ArrayList<String> = ArrayList<String>()
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list.add("Prague")
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list.add("St.Petersburg")
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list.add("Moscow")
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list.add("Munich")
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val m: ArrayList<String> = list.findAll<String>({(name: String) => name.startsWith("M")})
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return if (m.size() == 2) "OK" else "fail"
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}
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