java - Non-static method getText() can not be referenced from a static context -


i have written following code, continually 'non-static method gettext() can not referenced static context' error.

could me on right track here?

public class isbntext extends jtextfield {      protected static string booknum;    protected jtextfield  booktext;     public isbntext()     {        super(20);        booktext = new jtextfield();    }       public string getisbn()    {                  string booknum = isbntext.gettext();       return booknum;    }    private string validateisbn(string booknum) }

this line:

string booknum = isbntext.gettext();

should be:

string booknum = gettext();

which implicitly:

string booknum = this.gettext();

the call isbntext.gettext() trying call if it's static method - i.e. associated type rather specific instance of type. doesn't make sense, text is associated instance of type. 2 alternatives i've shown equivalent, finding text of isbntext getisbn has been called on.


Comments

Post a Comment

Popular posts from this blog

apache - Add omitted ? to URLs -

i working on website cms reads page name of query string, e.g. http://exmaple.com/?pagename . trying create rewrite rule rewrite ? . so, user types in /pagename , taken /?pagename try this: rewriteengine on rewritecond %{request_filename} !-d rewritecond %{request_filename} !-f rewriterule ^/?(.*) index.php?$1 [l]
Read more

redirect - bbPress Forum - rewrite to wwww.mysite prohibits login -

i using bbpress installation without wordpress integration. the redirect of rewriteengine @ forum site works: rewriteengine on rewritecond %{http_host} ^forum.mysite.com$ rewriterule (.*)$ http://www.forum.mysite.com/$1 [r=301,l] the problem login pppress. bbpress login not recognize: http://www.forum.mysite/bb-login.php . it redirects to: http://forum.mysite.com/bb-login.php . i tried permalink settings none , name based, same issue. does uses redirect in bbpress or how can eliminate "double" content , redirect permanently www.? i redirected www.forum.mysite.com forum.mysite.com , achieved eliminate "double" content.
Read more

php - How can I stop spam on my custom forum/blog? -

so have custom built forum & blog system of late has been dealing lot of spam. if wordpress use akismet, if different common platform i'm sure i'd find plugin. there kind of static class can download this? using php. i'd still go akismet, if it. uses outside of wordpress, may have pay fee it, depending on use -- check terms , conditions -- it's option , easy implement in php using api. use api key wordpress. com account access. basically, grab whichever php client library takes fancy -- use alex potsides' php5 library -- plug in key, , it's handful of lines of code. here's bare bones of validation straight 1 of live sites: ... if ($akismet) { $akismet->setcommentauthor($name); $akismet->setcommentauthoremail($session->userinfo["email"]); $akismet->setcommentauthorurl(""); $akismet->setcommentcontent($sentence);...
Read more