java.awt.Robot

import java.awt.AWTException;
import java.awt.Robot;
import java.awt.event.KeyEvent;

public class TestRobot {
Robot man;

public static void main(String[] args) throws AWTException {
new TestRobot();
}

public TestRobot() throws AWTException {
man = new Robot();
man.mouseMove(300, 300);
String s = "weidwiao is great";
int k = KeyEvent.VK_A;
for (char i : s.toCharArray()) {
if (Character.isAlphabetic(i))
i = Character.toUpperCase(i);
else if(Character.isSpaceChar(i))
i=KeyEvent.VK_SPACE;
man.keyPress(i);
man.keyRelease(i);
man.delay(1000);
}
}
}