import java.io.File;

import java.io.FileOutputStream;
import java.io.FileNotFoundException;
import java.io.IOException;

public class FileTester {
	public static void main(String[] args) {
		try {
			File appendFile =  new File("test.txt");
			FileOutputStream fos = new  FileOutputStream(appendFile,true);
			String appendText = "Hello World "  + System.currentTimeMillis() + "
";
			fos.write(appendText.getBytes());
			fos.close();
		} catch(FileNotFoundException fe){
			System.out.println("Exception thrown :: FileNotFoundException ");
			fe.printStackTrace();

		} catch(IOException ie) {
			System.out.println("Exception thrown :: IOException ");
			ie.printStackTrace();
		}
	}
}