Display html code in blog

if we type the html code in the article will automatically be considered Html tags. so the code will not appear as we want.
Because the HTML code that directly read and executed by the browser. ago to show the code that we want to publish to the readers, we will make the text area to display html code in the post article.
see as below.

textarea code is:

<textarea rows="4" cols="55" name="code"> insert your tag html code here
and close with < /textarea >

example:
learn to display html in text area <a href="http://rochmada.blogspot.com">goblog make money</a>