Finished the challenge.

Retos/Reto #14 - OCTAL Y HEXADECIMAL [Fácil]/java/thiestoril.java

@@ -0,0 +1,62 @@
+import java.util.Scanner;
+import java.util.HashMap;
+
+
+public class thiestoril {
+
+    // Converts an integer to an octal number
+    private static String intToOct(int number) {
+        String octal = "";
+
+        while (number != 0) {
+            octal = (number % 8) + octal;
+            number /= 8;
+        }
+
+        return octal;
+    }
+
+    // Converts an integer to a hexadecimal
+    private static String intToHex(int number, HashMap <Integer, String> dic) {
+        String hex = "";
+        int aux;
+
+        while (number != 0) {
+            aux = number % 16;
+            hex = (aux < 10) ? aux + hex : dic.get(aux) + hex;
+            number /= 16;
+        }
+
+        return hex;
+    }
+
+    public static void main(String args[]) {
+
+        // Get the input
+        System.out.println("Insert a number:");
+
+        Scanner scan = new Scanner(System.in);
+        String input = scan.next();
+
+        int number = Integer.parseInt(input);
+
+        // Setup dictionary
+        HashMap <Integer, String> dict = new HashMap <Integer, String>();
+        dict.put(10, "A");
+        dict.put(11, "B");
+        dict.put(12, "C");
+        dict.put(13, "D");
+        dict.put(14, "E");
+        dict.put(15, "F");
+
+        // Convert to octal
+        String octal = intToOct(number);
+
+        // Convert to hex
+        String hex = intToHex(number, dict);
+
+        // Print the results
+        System.out.println("Octal is: " + octal);
+        System.out.println("Hexadecimal is: " + hex);
+    }
+}