# Decimal to roman numeral converter in kotlin

Kotlin program for Decimal to roman numeral converter. Here mentioned other language solution.

``````//  Kotlin program for
//  Conversion from Decimal to roman number
class Perform {
// Display roman value of n
fun show(n : Int) : Unit
{
when (n)
{
// Test Cases
1  -> print("I");
4  -> print("IV");
5  -> print("V");
9  -> print("IX");
10 -> print("X");
40 -> print("XL");
50 -> print("L");
90 -> print("XC");
100-> print("C");
400-> print("CD");
500-> print("D");
900-> print("DM");
1000-> print("M");
}
}
fun select(number : Long,
collection : Array<Int>,
size : Int) : Long
{
var n : Int = 1;
var i : Int = 0;
while (i < size)
{
if (number >= collection[i])
{
n = collection[i];
}
else
{
break;
}
i += 1;
}
this.show(n);
// Reduce the value of number
return number - n;
}
fun roman(n : Long) : Unit
{
var number = n;
if (number <= 0)
{
// When is not a natural number
return;
}
// Base case collection
val collection : Array<Int> =
arrayOf(1, 4, 5, 9, 10, 40, 50,
90, 100, 400, 500, 900, 1000);
// Get the size of collection
val size : Int = collection.count();
print(" " + n + " : ");
while (number > 0)
{
number = this.select(number, collection, size);
}
println();
}
}
fun main(args : Array<String>) : Unit
{
val task : Perform = Perform();
// Test Case
}``````

Output

`````` 10 : X
18 : XVIII
189 : CLXXXIX
604 : DCIV
982 : DMLXXXII
3000 : MMM``````

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