robot keyevent

/*   
 * import java.awt.AWTException;
   import java.awt.Robot;
   import java.awt.event.KeyEvent;
 *
 * @Step
    public void switch_role(String role){
     solutionExplorerPage().getUserProfileButton().click();
      solutionExplorerPage().getRoleSwitchInput().click();
      char[] temp= ((role.substring(0,1)).toLowerCase()).toCharArray();
      char t = temp[0];
     try {
     Robot robot = new Robot();    
      switch (t){
      case 'a':
       robot.keyPress(KeyEvent.VK_A);
       break;
      case 'e':
       robot.keyPress(KeyEvent.VK_E);
       break;
      case 'c':
       robot.keyPress(KeyEvent.VK_C);
       break;
      }
     robot.keyPress(KeyEvent.VK_ENTER);
     solutionExplorerPage().getRoleSwitchSaveButton().click();
     robot.delay(5000);
     robot.keyPress(KeyEvent.VK_ENTER);
     robot.delay(10000);} catch (AWTException e) {
         e.printStackTrace();
         }
    }*/