Moved from Gradle to bld

examples/gradle/bin/main/com/example/CryptoPriceExample.kt

@@ -0,0 +1,47 @@
+package com.example
+
+import net.thauvin.erik.crypto.CryptoException
+import net.thauvin.erik.crypto.CryptoPrice.Companion.apiCall
+import net.thauvin.erik.crypto.CryptoPrice.Companion.buyPrice
+import net.thauvin.erik.crypto.CryptoPrice.Companion.sellPrice
+import net.thauvin.erik.crypto.CryptoPrice.Companion.spotPrice
+import org.json.JSONObject
+import java.io.IOException
+
+fun main(args: Array<String>) {
+    try {
+        if (args.isNotEmpty()) {
+            val price = if (args.size == 2) spotPrice(args[0], args[1]) else spotPrice(args[0])
+            println("The current ${price.base} price is ${price.toCurrency()}")
+        } else {
+            // Get current Bitcoin spot price.
+            val price = spotPrice("BTC")
+            println("The current Bitcoin price is ${price.toCurrency()}")
+
+            println()
+
+            // Get current Ethereum sell price in Pound sterling.
+            val gbpPrice = sellPrice("ETH", "GBP")
+            println("The current Ethereum sell price is ${gbpPrice.toCurrency()}")
+
+            // Get current Litecoin buy price in Euro.
+            val euroPrice = buyPrice("LTC", "EUR")
+            println("The current Litecoin buy price is ${euroPrice.toCurrency()}")
+
+            println()
+
+            // Get exchange rate using API.
+            // See: https://docs.cloud.coinbase.com/sign-in-with-coinbase/docs/api-exchange-rates
+            val response = apiCall(listOf("exchange-rates"), mapOf("currency" to "usd"))
+            val rates = JSONObject(response).getJSONObject("data").getJSONObject("rates")
+            println("The USD-EUR exchange rate is: ${rates.getString("EUR")}")
+        }
+    } catch (e: CryptoException) {
+        System.err.println("HTTP Status Code: ${e.statusCode}")
+        System.err.println(e.message)
+    } catch (e: IllegalArgumentException) {
+        System.err.println("Could not display the specified currency: ${args[1]}")
+    } catch (e: IOException) {
+        System.err.println(e.message)
+    }
+}