sample added

samples/build.gradle

@@ -0,0 +1,5 @@
+dependencies {
+
+    compileOnly project(":ev3classes")
+
+}

samples/src/main/java/Main.java

@@ -0,0 +1,22 @@
+import lejos.hardware.Battery;
+import lejos.hardware.Sound;
+import lejos.utility.Delay;
+
+public class Main {
+
+    public static void main(String[] args) {
+        String message = args.length > 0 ? args[0] : "Hello world!";
+
+        System.out.println(message);
+
+        Delay.msDelay(500);
+        Sound.beep();
+
+        System.out.println();
+        System.out.println("Battery voltage:");
+        System.out.println(Battery.getVoltage());
+
+        Delay.msDelay(3000);
+    }
+
+}

settings.gradle

@@ -1,3 +1,4 @@
 rootProject.name = 'mindstorms'
 //include ':dbusjava'
 include ':ev3classes'
+include ':samples'