Evgeny Gerashchenko
20 lines
381 B
Kotlin
20 lines
381 B
Kotlin
package foo
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import java.util.*
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fun <T> ArrayList<T>.plus(other: Collection<T>): ArrayList<T> {
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val c = ArrayList<T>()
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c.addAll(this)
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c.addAll(other)
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return c
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}
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fun box(): Boolean {
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var v1 = ArrayList<String>()
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val v2 = ArrayList<String>()
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v1.add("foo")
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v2.add("bar")
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v1 += v2
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return (v1.size() == 2 && v1[0] == "foo" && v1[1] == "bar")
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}
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