Hello World. We\'re stuck on this assignment - and are hoping for some helpfull

Question

Hello World.

We're stuck on this assignment - and are hoping for some helpfull input - anyone of you have a clue as how to solve this problem?

This is what we have so far (1-5):

package morseReader;

import lejos.nxt.LightSensor;
import lejos.nxt.MotorPort;
import lejos.nxt.SensorPort;

public class robot1

{
public static void main(String[] args)
{
long [] lightBlinks = new long[15];
LightSensor light = new LightSensor(SensorPort.S1);
  
// light.getLightValue() > 50 light is on
// light.getLightValue() < 50 light is off
  
  
for(int i = 0; i<lightBlinks.length; i++)
{
while(light.getLightValue() < 50)
{
; // do nothing while light is off
}

long turnON = System.currentTimeMillis();

while(light.getLightValue() > 50)
{
;
}

long turnOFF = System.currentTimeMillis();
long duration = turnOFF - turnON; //first blink
lightBlinks [i] = duration;

}
  
long highest = lightBlinks[0];
for(int i = 0; i < lightBlinks.length; i++)
{
if(lightBlinks[i] > highest)
{
highest = lightBlinks[i];
}
}
  
long secondHighest = -1;
for(int i = 0; i < lightBlinks.length; i++)
{
if(lightBlinks[i] > secondHighest && lightBlinks[i] < highest-5) //find a new number/sequence
{
secondHighest = lightBlinks[i];
}
}
  
turnRight((int)highest/10);
goForward((int)secondHighest/10);
  
// secondHighest = highest;
// for(int i = 0; i < lightBlinks.length; i++)
// {
// if(secondHighest == highest)
// secondHighest = lightBlinks[i];
// if(lightBlinks[i] > secondHighest && lightBlinks[i] < highest)
// secondHighest = lightBlinks[i];
// }
// general way of finding the second highest even if the numbers are negative
  
  
  
  
}
public static void goForward(int cm)
{
// set our goal - current tachocount + cm multiplied by 21 (1 cm is appr. 21 degrees in our case)
  
int goal = MotorPort.B.getTachoCount() + 21*cm;
// start both motors
MotorPort.B.controlMotor(80, 1);
MotorPort.C.controlMotor(79, 1);
// and do nothing until the tachocount reaches the goal
while(MotorPort.B.getTachoCount() < goal)
{
;
}
// Then stop the motors
MotorPort.B.controlMotor(80, 3);
MotorPort.C.controlMotor(80, 3);

}

public static void turnRight(int degrees)
{
// set our goal - current tachocount + 330 (that's how much one wheel needs to rotate to make the robot turn 90 degrees
int goal = MotorPort.C.getTachoCount() + (int) (degrees * 3.666); // 3.666 is the number that the wheel needs in order to turn 1 degree
// Stop one motor and start the other
MotorPort.B.controlMotor(80, 3);
MotorPort.C.controlMotor(70, 1);
// wait until tachocount reaches the goal
// check if the wheel is moving
while(MotorPort.C.getTachoCount() < goal)
{
;
}
MotorPort.C.controlMotor(80, 3);

}

Here is the assignment description:   

It is a Lego Mindstorms Robot,with java programming.

The robot has the following properties:

Explanation / Answer

import java.awt.AWTException;

import java.awt.Robot;

import java.awt.event.InputEvent;

import java.awt.event.KeyEvent;

/**

* A Java Robot example class.

*

* Caution: Using the Java Robot class improperly can cause

* a lot of system problems. I had to reboot my Mac ~10

* times yesterday while trying to debug this code.

*

* I created this class to demonstrate the Java Robot

* class on a Mac OS X system, though it should run on Linux

* or Windows as well.

*

* On a Mac system, I place the TextEdit text editor in the

* upper-left corner of the screen, and put a bunch of blank lines

* in the editor. Then I run this Java Robot example from

* Eclipse or the Unix command line.

*

* It types the three strings shown in the code below into

* the text editor.

*

* Many thanks to the people on the Mac Java-dev mailing list

* for your help.

*

* @author Alvin Alexander, <a href="http://devdaily.com" title="http://devdaily.com">http://devdaily.com</a>

*

*/

public class JavaRobotExample

{

  Robot robot = new Robot();

  public static void main(String[] args) throws AWTException

  {

    new JavaRobotExample();

  }

  public JavaRobotExample() throws AWTException

  {

    robot.setAutoDelay(40);

    robot.setAutoWaitForIdle(true);

    robot.delay(4000);

    robot.mouseMove(40, 130);

    robot.delay(500);

    leftClick();

    robot.delay(500);

    leftClick();

    robot.delay(500);

    type("Hello, world");

    robot.mouseMove(40, 160);

    robot.delay(500);

    leftClick();

    robot.delay(500);

    leftClick();

    robot.delay(500);

    type("This is a test of the Java Robot class");

    robot.delay(50);

    type(KeyEvent.VK_DOWN);

    robot.delay(250);

    type("Four score and seven years ago, our fathers ...");

    robot.delay(1000);

    System.exit(0);

  }

  private void leftClick()

  {

    robot.mousePress(InputEvent.BUTTON1_MASK);

    robot.delay(200);

    robot.mouseRelease(InputEvent.BUTTON1_MASK);

    robot.delay(200);

  }

  private void type(int i)

  {

    robot.delay(40);

    robot.keyPress(i);

    robot.keyRelease(i);

  }

  private void type(String s)

  {

    byte[] bytes = s.getBytes();

    for (byte b : bytes)

    {

      int code = b;

      // keycode only handles [A-Z] (which is ASCII decimal [65-90])

      if (code > 96 && code < 123) code = code - 32;

      robot.delay(40);

      robot.keyPress(code);

      robot.keyRelease(code);

    }

  }

}

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