i don't want to show some articles and please help me how can i hide my articles at home page thank you
Try this: When you want to edit the post in your admin, click on "Quick edit" then check the box "Private" then "Update"
Maybe he doesn't want them private. He just doesn't want them to show on the homepage. If that is the case, then you have to exclude the category from the LOOP. There is sample code Exclude Posts From Some Category within the loop at the WordPress Codex.
I am bad when it comes to PHP lol.. You can hide it with css too, though, if you just want to hide it. Inspect the post ID with firebug and hide it. But editing the loop is the best, unless you use some complicated theme..
That is how News themes are coded. They display one category in a section, another category in another section. It is fairly simple once you do it a few times, well, kind of simple! I don't hiding with CSS is a good choice either way. It is like the "asides" category where people just blow off some steam with a few short sentences. The posts are not relative to their main theme, so they display them somewhere else that is low-key.
For posts http://wordpress.org/extend/plugins/advanced-category-excluder/ And for pages http://wordpress.org/extend/plugins/page-link-manager/
Out of date. Buggy. And unreliable. More problems that it is worth. Think before you recommend. That plugin is also out of date and does not work with newer versions of WordPress. Why do people keep throwing plugins as an answer for every problem, when changing one or two lines of code will accomplish what the person wants?