Merge pull request #2 from Chal13W1zz/frontend

Implement a bare minimum CLI frontend.

Author: pwnipc

src/main/java/App.java

@@ -0,0 +1,13 @@
+import java.io.Console;
+
+public class App {
+    public static void main(String[] args){
+        Console myConsole = System.console();
+        System.out.println("Enter the text to Encrypt: ");
+        String input = myConsole.readLine();
+        CaesarShift encDec = new CaesarShift();
+        System.out.println("Input String: " + input);
+        System.out.println("Encrypted: " + encDec.encrypt(input));
+        System.out.println("Decrypted String: "+encDec.decrypt(encDec.encrypt(input)));
+    }
+}