import javax.microedition.lcdui.Graphics; import lejos.nxt.Button; import lejos.nxt.SensorPort; import lejos.nxt.Sound; import lejos.nxt.TouchSensor; import lejos.util.Delay; public class Line { public static void main(String[] args) { Graphics g = new Graphics(); TouchSensor ts = new TouchSensor(SensorPort.S1); int x = 0; int y1 = 32, y2 = 32; do { g.setColor(1); g.drawLine(x, 0, x, 63); g.setColor(0); if (ts.isPressed()) { y2 = 22; Sound.beep(); } else y2 = 32; g.drawLine(x, y1, x, y2); y1 = y2; x++; if (x == 100) x = 0; Delay.msDelay(100); } while (!Button.ESCAPE.isDown()); } }