Java Robot Example

On executing this program, the system will automatically search for the keyword that is passed in the java file and open that program in the system. For example this program will open notepad direclty on executing if notepad is the keywor passed.

import java.awt.Robot;
import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;
import java.lang.reflect.Field;
public class RobotExample {
 public static void main(String[] args) throws Exception{
  String str = "Hie Sam";
  Robot r = new Robot();

  r.mouseMove(20, 890);
  r.mousePress(InputEvent.BUTTON1_MASK);
  r.delay(20);
  r.mouseRelease(InputEvent.BUTTON1_MASK);
  typeKeys("Notepad",r);
  r.delay(50);
  r.keyPress(KeyEvent.VK_ENTER);
  r.delay(20);
  typeKeys(str, r);


 }
 public static void typeKeys(String str,Robot r)
 {
  for(int i=0;i<str.length();i++)
  {
   typeCharacter(r, ""+str.charAt(i));
  }
 }
 public static void typeCharacter(Robot robot, String letter)
 {
  try
  {
   boolean upperCase = Character.isUpperCase( letter.charAt(0) );
   String variableName = "VK_" + letter.toUpperCase();

   Class clazz = KeyEvent.class;
   Field field = clazz.getField( variableName );
   int keyCode = field.getInt(null);

   robot.delay(1000);

   if (upperCase) robot.keyPress( KeyEvent.VK_SHIFT );

   robot.keyPress( keyCode );
   robot.keyRelease( keyCode );

   if (upperCase) robot.keyRelease( KeyEvent.VK_SHIFT );
  }
  catch(Exception e)
  {
   System.out.println(e);
  }
 }
}