public class GroveButtonSample{ static { try { System.loadLibrary("javaupm_grove"); }catch (UnsatisfiedLinkError e) { System.err.println("error in loading native library"); System.exit(-1); } } public static void main(String[] args) throws InterruptedException { // Create the button object using UART upm_grove.GroveButton button = new upm_grove.GroveButton(0); while (true) { System.out.println(button.name() +" value is " + button.value()); Thread.sleep(1000); } } }