Currency formatting

CurrencyFormatting.kt

import java.math.BigDecimal
import java.text.NumberFormat
import java.util.Currency
import java.util.Locale

fun main(args: Array<String>) {
    val locales = listOf(
            Locale.FRANCE,
            Locale.GERMANY,
            Locale.UK,
            Locale.ITALY,
            Locale("es", "ES"), // Spanish - Spain
            Locale("en", "ES"), // English - Spain
            Locale("es", "MX"), // Spanish - Mexico
            Locale("en", "MX"), // English - Mexico
            Locale.US,
            Locale.JAPAN
    )

    val value = BigDecimal.valueOf(1234.56)

    // ISO 4217 currency codes; see https://en.wikipedia.org/wiki/ISO_4217#X_currencies
    val currencies = listOf(
            "MXN", // Mexican Peso
            "JPY", // Japanese Yen
            "USD", // US Dollar
            "EUR", // Euro
            "GBP"  // UK Pound
    )

    for (currency in currencies) {
        println("Currency: $currency")
        for (locale in locales) {
            println("Locale: $locale\t Formatted value: ${formatCurrency(value, currency, locale)}")
        }
        println()
    }
}

fun formatCurrency(value: BigDecimal, isoCurrencyCode: String, locale: Locale): String {
    val currency = Currency.getInstance(isoCurrencyCode)
    val currencyFormat = NumberFormat.getCurrencyInstance(locale)
    currencyFormat.currency = currency
    return currencyFormat.format(value)
}

/*
 * OUTPUT:
 *
 * Currency: MXN
 * Locale: fr_FR	 Formatted value: 1 234,56 MXN
 * Locale: de_DE	 Formatted value: 1.234,56 MXN
 * Locale: en_GB	 Formatted value: MXN1,234.56
 * Locale: it_IT	 Formatted value: MXN 1.234,56
 * Locale: es_ES	 Formatted value: 1.234,56 MXN
 * Locale: en_ES	 Formatted value: MXN1,234.56
 * Locale: es_MX	 Formatted value: $1,234.56
 * Locale: en_MX	 Formatted value: MXN1,234.56
 * Locale: en_US	 Formatted value: MXN1,234.56
 * Locale: ja_JP	 Formatted value: MXN1,235
 *
 * Currency: JPY
 * Locale: fr_FR	 Formatted value: 1 234,56 JPY
 * Locale: de_DE	 Formatted value: 1.234,56 JPY
 * Locale: en_GB	 Formatted value: JPY1,234.56
 * Locale: it_IT	 Formatted value: JPY 1.234,56
 * Locale: es_ES	 Formatted value: 1.234,56 JPY
 * Locale: en_ES	 Formatted value: JPY1,234.56
 * Locale: es_MX	 Formatted value: JPY1,234.56
 * Locale: en_MX	 Formatted value: JPY1,234.56
 * Locale: en_US	 Formatted value: JPY1,234.56
 * Locale: ja_JP	 Formatted value: ￥1,235
 *
 * Currency: USD
 * Locale: fr_FR	 Formatted value: 1 234,56 USD
 * Locale: de_DE	 Formatted value: 1.234,56 USD
 * Locale: en_GB	 Formatted value: USD1,234.56
 * Locale: it_IT	 Formatted value: USD 1.234,56
 * Locale: es_ES	 Formatted value: 1.234,56 USD
 * Locale: en_ES	 Formatted value: USD1,234.56
 * Locale: es_MX	 Formatted value: US$1,234.56
 * Locale: en_MX	 Formatted value: USD1,234.56
 * Locale: en_US	 Formatted value: $1,234.56
 * Locale: ja_JP	 Formatted value: USD1,235
 *
 * Currency: EUR
 * Locale: fr_FR	 Formatted value: 1 234,56 €
 * Locale: de_DE	 Formatted value: 1.234,56 €
 * Locale: en_GB	 Formatted value: €1,234.56
 * Locale: it_IT	 Formatted value: € 1.234,56
 * Locale: es_ES	 Formatted value: 1.234,56 €
 * Locale: en_ES	 Formatted value: EUR1,234.56
 * Locale: es_MX	 Formatted value: EUR1,234.56
 * Locale: en_MX	 Formatted value: EUR1,234.56
 * Locale: en_US	 Formatted value: EUR1,234.56
 * Locale: ja_JP	 Formatted value: EUR1,235
 *
 * Currency: GBP
 * Locale: fr_FR	 Formatted value: 1 234,56 GBP
 * Locale: de_DE	 Formatted value: 1.234,56 GBP
 * Locale: en_GB	 Formatted value: £1,234.56
 * Locale: it_IT	 Formatted value: GBP 1.234,56
 * Locale: es_ES	 Formatted value: 1.234,56 GBP
 * Locale: en_ES	 Formatted value: GBP1,234.56
 * Locale: es_MX	 Formatted value: GBP1,234.56
 * Locale: en_MX	 Formatted value: GBP1,234.56
 * Locale: en_US	 Formatted value: GBP1,234.56
 * Locale: ja_JP	 Formatted value: GBP1,235
 */