Homework SourseHello World Were stuck on this assignment and are hoping fo
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?
It is a Lego Mindstorms Robot,with java programming.
The robot has the following properties:
Solution
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);
}
}
}
| 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); } } } |
