{"id":1634,"date":"2016-04-25T23:43:00","date_gmt":"2016-04-26T04:43:00","guid":{"rendered":"http:\/\/linuxitos.com\/main\/validar-jtextfield-que-acepte-numeros-decimales\/"},"modified":"2016-04-25T23:43:00","modified_gmt":"2016-04-26T04:43:00","slug":"validar-jtextfield-que-acepte-numeros-decimales","status":"publish","type":"post","link":"https:\/\/linuxitos.com\/main\/validar-jtextfield-que-acepte-numeros-decimales\/","title":{"rendered":"Validar JTextField que acepte n\u00fameros decimales"},"content":{"rendered":"
\n
<\/a><\/div>\n

<\/p>\n

A veces es necesario validar campos de texto de tal modo que el usuario cometa el m\u00ednimo error posible, ya que siempre es posible que lo haga.<\/div>\n
<\/div>\n
Recientemente necesit\u00e9 validar unos jtextfield, en donde soloa aceptaban n\u00fameros decimales, pero no reduje el c\u00f3digo siguiente:<\/div>\n
Si alguien conoce alg\u00fan m\u00e9tod mucho menor, favor de comentar:<\/div>\n
<\/div>\n
<\/div>\n
<\/div>\n
if(jtxtPeso.getText().length() >= 8){<\/span>
<\/span>        evt.consume();<\/span>
<\/span><\/span><\/p>\n
}
 char car = evt.getKeyChar();
 char text[];
 int count = 0;
 text = jtxtPeso.getText().toCharArray();
 for(int i = 0 ; i< text.length; i++){
        if(text[i] == ‘.’){
                count++;
       }
 }
 if(count>=1 && evt.getKeyChar() == ‘.’){
       evt.consume();
 }
  if((car!=’0′ && car!=’1′ && car!=’2′ && car!=’3′ && car!=’4′ && car!=’5′
                && car!=’6′ && car!=’7′ && car!=’8′ && car!=’9′ && car!=’.’)){
            getToolkit().beep();
            evt.consume();
 }<\/span><\/span><\/div>\n<\/div>\n

Este c\u00f3digo se agrega en el evento siguiente del jtextfield:<\/p>\n

private void jtxtPesoKeyTyped(java.awt.event.KeyEvent evt) {<\/span><\/p>\n

}<\/span><\/p>\n

Y espero sus comentarios<\/p>\n

<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

A veces es necesario validar campos de texto de tal modo que el usuario cometa el m\u00ednimo error posible, ya que siempre es posible que lo haga. Recientemente necesit\u00e9 validar unos jtextfield, en donde soloa aceptaban n\u00fameros decimales, pero no reduje el c\u00f3digo siguiente: Si alguien conoce alg\u00fan m\u00e9tod mucho menor, favor de comentar: if(jtxtPeso.getText().length() […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[733,738,446,734,737,735,736],"tags":[],"class_list":["post-1634","post","type-post","status-publish","format-standard","hentry","category-aceptar-digitos-numericos-y-un-solo-punto","category-decimal","category-java","category-jtextfield","category-numero-decimal","category-validar","category-validate"],"_links":{"self":[{"href":"https:\/\/linuxitos.com\/main\/wp-json\/wp\/v2\/posts\/1634","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/linuxitos.com\/main\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/linuxitos.com\/main\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/linuxitos.com\/main\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/linuxitos.com\/main\/wp-json\/wp\/v2\/comments?post=1634"}],"version-history":[{"count":0,"href":"https:\/\/linuxitos.com\/main\/wp-json\/wp\/v2\/posts\/1634\/revisions"}],"wp:attachment":[{"href":"https:\/\/linuxitos.com\/main\/wp-json\/wp\/v2\/media?parent=1634"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/linuxitos.com\/main\/wp-json\/wp\/v2\/categories?post=1634"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/linuxitos.com\/main\/wp-json\/wp\/v2\/tags?post=1634"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}