/** * The HelloWorldApp class implements an application that * simply displays “Hello World!” to the standard output. */ class HelloWorldApp { public static void main(String[] args) {

      System.out.println("Hello World!"); //Display the string.
  }

}

这段跟上段很像，但是改用 <file> ，可以把它用在「引述名言(Quote)」效果上。  
remember, information is not knowledge,
                  knowledge is not wisdom
                  wisdom is not truth
                  truth is not beauty
                  beauty is not love
                  love is not music
                  music is the best
  
                                              -- frank zappa

就像       <-这个