java模拟点击

try {  
     Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();  
     Robot robot = new Robot();  
     robot.mouseMove(screenSize.width-10,10);  
     robot.delay(2000);  
     robot.mousePress(InputEvent.BUTTON1_MASK);  
     robot.delay(2000);  
     robot.mouseRelease(InputEvent.BUTTON1_MASK);  
} catch (AWTException e) {  
    e.printStackTrace();  
}