27 lines
666 B
Kotlin
27 lines
666 B
Kotlin
package drills.drill01.exercise4
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import drills.drill01.exercise2.PrintService
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import java.rmi.Remote
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import java.rmi.RemoteException
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import java.rmi.server.UnicastRemoteObject
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interface Math : Remote {
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@Throws(RemoteException::class)
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fun getFactOf(n: Int): Long
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@Throws(RemoteException::class)
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fun getFactOf(n: Int, ps: PrintService)
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}
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class MathImpl : Math, UnicastRemoteObject() {
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override fun getFactOf(n: Int): Long = fact(n)
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override fun getFactOf(n: Int, ps: PrintService) {
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ps.print("The factorial of $n is ${fact(n)}")
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}
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private fun fact(n: Int): Long {
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return if (n <= 1) 1 else n * fact(n - 1)
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}
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}
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