Open a preferred application and start typing automatically.

TypeFun.java

package com.demo.advjava;

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

public class NotepadFun {
	public static void main(String[] args) throws IOException, InterruptedException, AWTException {
		Runtime.getRuntime().exec("gedit");
		Thread.sleep(4000);
		Robot r=new Robot();
		r.keyPress(KeyEvent.VK_T);
		Thread.sleep(500);
		r.keyPress(KeyEvent.VK_H);
		Thread.sleep(500);
		r.keyPress(KeyEvent.VK_I);
		Thread.sleep(500);
		r.keyPress(KeyEvent.VK_S);
		Thread.sleep(500);
		r.keyPress(KeyEvent.VK_SPACE);
		Thread.sleep(500);
		r.keyPress(KeyEvent.VK_I);
		Thread.sleep(500);
		r.keyPress(KeyEvent.VK_S);
		Thread.sleep(500);
		r.keyPress(KeyEvent.VK_SPACE);
		Thread.sleep(500);
		r.keyPress(KeyEvent.VK_F);
		Thread.sleep(500);
		r.keyPress(KeyEvent.VK_U);
		Thread.sleep(500);
		r.keyPress(KeyEvent.VK_N);	
	}
}