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leJOS (pronounced like the Spanish word "lejos" for "far") is a tiny Java Virtual Machine. In 2013 it was ported to the LEGO EV3 brick.

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package lejos.hardware.motor;

import lejos.hardware.BrickFinder;

/**
 * Motor class contains 3 instances of regulated motors.
 * 
 * Example:

 * 
 *   Motor.A.setSpeed(720);// 2 RPM
 *   Motor.C.setSpeed(720);
 *   Motor.A.forward();
 *   Motor.C.forward();
 *   Thread.sleep (1000);
 *   Motor.A.stop();
 *   Motor.C.stop();
 *   Motor.A.rotateTo( 360);
 *   Motor.A.rotate(-720,true);
 *   while(Motor.A.isMoving() :Thread.yield();
 *   int angle = Motor.A.getTachoCount(); // should be -360
 *   LCD.drawInt(angle,0,0);
 * 
 * @author Roger Glassey/Andy Shaw
 */
public class Motor
{
    /**
     * Motor A.
     */
    public static final NXTRegulatedMotor A = new NXTRegulatedMotor(BrickFinder.getDefault().getPort("A"));
    /**
     * Motor B.
     */
    public static final NXTRegulatedMotor B = new NXTRegulatedMotor(BrickFinder.getDefault().getPort("B"));
    /**
     * Motor C.
     */
    public static final NXTRegulatedMotor C = new NXTRegulatedMotor(BrickFinder.getDefault().getPort("C"));
    
    /**
     * Motor D.
     */
    public static final NXTRegulatedMotor D = new NXTRegulatedMotor(BrickFinder.getDefault().getPort("D"));
    
    private Motor() {
    	// Motor class cannot be instantiated
    }
    
}