{"id":861,"date":"2010-05-22T12:37:40","date_gmt":"2010-05-22T10:37:40","guid":{"rendered":"http:\/\/www.guion78.com\/wordpress\/?p=861"},"modified":"2014-04-24T19:34:14","modified_gmt":"2014-04-24T18:34:14","slug":"java-scheme","status":"publish","type":"post","link":"https:\/\/www.guion78.com\/wordpress\/blog\/2010\/05\/22\/java-scheme\/","title":{"rendered":"Java \u2013> Scheme"},"content":{"rendered":"<p>Vediamo ora le differenze tra la programmazione in Scheme e Java; partiamo da una funzione semplice semplice che permette il reverse di una stringa (alfanumerica) e la vedremo nei vari linguaggi di programmazione:<br \/>\n1) In Scheme:<\/p>\n<pre class=\"brush: plain; title: ; notranslate\" title=\"\">(define revi\r\n(lambda (txt)\r\n(if (= (string-length txt) 0)\r\ntxt\r\n(string-append (string (string-ref txt (- (string-length txt) 1))) (revi (substring txt 0 (- (string-length txt) 1))))\r\n)\r\n))<\/pre>\n<p>Il concetto di base della funzione \u00e8 la RICORSIONE, cio\u00e8 richiamo la stessa funzione fino al termine del caso base.<\/p>\n<p>2) Vediamo la stessa ricorsione in Java:<\/p>\n<pre class=\"brush: plain; title: ; notranslate\" title=\"\">class rev\r\n{\r\npublic static String revi (String parola)\r\n{\r\nint k = parola.length();\r\nif (k &lt; 1)\r\nreturn parola;\r\nelse\r\n{\r\nparola = parola.charAt(k-1) + rev.revi (parola.substring (0, k-1));\r\n}\r\nreturn parola;\r\n}\r\n}<\/pre>\n<p>3) Vediamo la stessa funzione in Java con un ciclo:<\/p>\n<pre class=\"brush: plain; title: ; notranslate\" title=\"\"><code>class ribalta {<\/code><\/pre>\r\npublic static String ribalto (String testo)\r\n{\r\nint rigth ;\r\nrigth = testo.length();\r\nStringBuffer dest = new StringBuffer(rigth);\r\n\r\nfor (int index = (rigth -1); index >= 0; index--)\r\ndest.append(testo.charAt(index));\r\nreturn dest.toString();\r\n}\r\n}\r\n<pre><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Vediamo ora le differenze tra la programmazione in Scheme e Java; partiamo da una funzione semplice semplice che permette il reverse di una stringa (alfanumerica) e la vedremo nei vari linguaggi di programmazione: 1) In Scheme: (define revi (lambda (txt) (if (= (string-length txt) 0) txt (string-append (string (string-ref txt (- (string-length txt) 1))) (revi [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"ngg_post_thumbnail":0,"footnotes":""},"categories":[395,348,396],"tags":[846,847,453],"class_list":["post-861","post","type-post","status-publish","format-standard","hentry","category-java","category-programmazione","category-scheme","tag-java","tag-scheme","tag-scheme-to-java"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Java -&gt; Scheme - Guion Matteo<\/title>\n<meta name=\"description\" content=\"Scheme\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.guion78.com\/wordpress\/blog\/2010\/05\/22\/java-scheme\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Java -&gt; Scheme - Guion Matteo\" \/>\n<meta property=\"og:description\" content=\"Scheme\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.guion78.com\/wordpress\/blog\/2010\/05\/22\/java-scheme\/\" \/>\n<meta property=\"og:site_name\" content=\"Guion Matteo\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/BlogMatteoGuion\/\" \/>\n<meta property=\"article:published_time\" content=\"2010-05-22T10:37:40+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2014-04-24T18:34:14+00:00\" \/>\n<meta name=\"author\" content=\"Gua78\" \/>\n<meta name=\"twitter:label1\" content=\"Scritto da\" \/>\n\t<meta name=\"twitter:data1\" content=\"Gua78\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tempo di lettura stimato\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minuto\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.guion78.com\\\/wordpress\\\/blog\\\/2010\\\/05\\\/22\\\/java-scheme\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.guion78.com\\\/wordpress\\\/blog\\\/2010\\\/05\\\/22\\\/java-scheme\\\/\"},\"author\":{\"name\":\"Gua78\",\"@id\":\"https:\\\/\\\/www.guion78.com\\\/wordpress\\\/#\\\/schema\\\/person\\\/dc866ea65964583c162e5476e0ed60e9\"},\"headline\":\"Java \u2013> Scheme\",\"datePublished\":\"2010-05-22T10:37:40+00:00\",\"dateModified\":\"2014-04-24T18:34:14+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.guion78.com\\\/wordpress\\\/blog\\\/2010\\\/05\\\/22\\\/java-scheme\\\/\"},\"wordCount\":175,\"commentCount\":1,\"keywords\":[\"Java\",\"Scheme\",\"Scheme to java\"],\"articleSection\":[\"Java\",\"Programmazione\",\"Scheme\"],\"inLanguage\":\"it-IT\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.guion78.com\\\/wordpress\\\/blog\\\/2010\\\/05\\\/22\\\/java-scheme\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.guion78.com\\\/wordpress\\\/blog\\\/2010\\\/05\\\/22\\\/java-scheme\\\/\",\"url\":\"https:\\\/\\\/www.guion78.com\\\/wordpress\\\/blog\\\/2010\\\/05\\\/22\\\/java-scheme\\\/\",\"name\":\"Java -> Scheme - Guion Matteo\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.guion78.com\\\/wordpress\\\/#website\"},\"datePublished\":\"2010-05-22T10:37:40+00:00\",\"dateModified\":\"2014-04-24T18:34:14+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/www.guion78.com\\\/wordpress\\\/#\\\/schema\\\/person\\\/dc866ea65964583c162e5476e0ed60e9\"},\"description\":\"Scheme\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.guion78.com\\\/wordpress\\\/blog\\\/2010\\\/05\\\/22\\\/java-scheme\\\/#breadcrumb\"},\"inLanguage\":\"it-IT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.guion78.com\\\/wordpress\\\/blog\\\/2010\\\/05\\\/22\\\/java-scheme\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.guion78.com\\\/wordpress\\\/blog\\\/2010\\\/05\\\/22\\\/java-scheme\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.guion78.com\\\/wordpress\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Java \u2013> Scheme\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.guion78.com\\\/wordpress\\\/#website\",\"url\":\"https:\\\/\\\/www.guion78.com\\\/wordpress\\\/\",\"name\":\"Guion Matteo\",\"description\":\"Il Blog ? finalizzato a dare una mano nei problemi informatici di tutti i giorni a tutti quelli a cui pu\u00f2 essere utile, spiegato in modo semplice e passo a passo\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.guion78.com\\\/wordpress\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"it-IT\"},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.guion78.com\\\/wordpress\\\/#\\\/schema\\\/person\\\/dc866ea65964583c162e5476e0ed60e9\",\"name\":\"Gua78\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"it-IT\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/4e4699b3c931feae00228b34007799d5331f707aa1cfd35b40d0e0637d82cf18?s=96&d=mm&r=pg\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/4e4699b3c931feae00228b34007799d5331f707aa1cfd35b40d0e0637d82cf18?s=96&d=mm&r=pg\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/4e4699b3c931feae00228b34007799d5331f707aa1cfd35b40d0e0637d82cf18?s=96&d=mm&r=pg\",\"caption\":\"Gua78\"},\"description\":\"Amministratore del Portale\",\"sameAs\":[\"http:\\\/\\\/www.guion78.com\"],\"url\":\"https:\\\/\\\/www.guion78.com\\\/wordpress\\\/blog\\\/author\\\/administrator\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Java -> Scheme - Guion Matteo","description":"Scheme","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.guion78.com\/wordpress\/blog\/2010\/05\/22\/java-scheme\/","og_locale":"it_IT","og_type":"article","og_title":"Java -> Scheme - Guion Matteo","og_description":"Scheme","og_url":"https:\/\/www.guion78.com\/wordpress\/blog\/2010\/05\/22\/java-scheme\/","og_site_name":"Guion Matteo","article_publisher":"https:\/\/www.facebook.com\/BlogMatteoGuion\/","article_published_time":"2010-05-22T10:37:40+00:00","article_modified_time":"2014-04-24T18:34:14+00:00","author":"Gua78","twitter_misc":{"Scritto da":"Gua78","Tempo di lettura stimato":"1 minuto"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.guion78.com\/wordpress\/blog\/2010\/05\/22\/java-scheme\/#article","isPartOf":{"@id":"https:\/\/www.guion78.com\/wordpress\/blog\/2010\/05\/22\/java-scheme\/"},"author":{"name":"Gua78","@id":"https:\/\/www.guion78.com\/wordpress\/#\/schema\/person\/dc866ea65964583c162e5476e0ed60e9"},"headline":"Java \u2013> Scheme","datePublished":"2010-05-22T10:37:40+00:00","dateModified":"2014-04-24T18:34:14+00:00","mainEntityOfPage":{"@id":"https:\/\/www.guion78.com\/wordpress\/blog\/2010\/05\/22\/java-scheme\/"},"wordCount":175,"commentCount":1,"keywords":["Java","Scheme","Scheme to java"],"articleSection":["Java","Programmazione","Scheme"],"inLanguage":"it-IT","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.guion78.com\/wordpress\/blog\/2010\/05\/22\/java-scheme\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.guion78.com\/wordpress\/blog\/2010\/05\/22\/java-scheme\/","url":"https:\/\/www.guion78.com\/wordpress\/blog\/2010\/05\/22\/java-scheme\/","name":"Java -> Scheme - Guion Matteo","isPartOf":{"@id":"https:\/\/www.guion78.com\/wordpress\/#website"},"datePublished":"2010-05-22T10:37:40+00:00","dateModified":"2014-04-24T18:34:14+00:00","author":{"@id":"https:\/\/www.guion78.com\/wordpress\/#\/schema\/person\/dc866ea65964583c162e5476e0ed60e9"},"description":"Scheme","breadcrumb":{"@id":"https:\/\/www.guion78.com\/wordpress\/blog\/2010\/05\/22\/java-scheme\/#breadcrumb"},"inLanguage":"it-IT","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.guion78.com\/wordpress\/blog\/2010\/05\/22\/java-scheme\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.guion78.com\/wordpress\/blog\/2010\/05\/22\/java-scheme\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.guion78.com\/wordpress\/"},{"@type":"ListItem","position":2,"name":"Java \u2013> Scheme"}]},{"@type":"WebSite","@id":"https:\/\/www.guion78.com\/wordpress\/#website","url":"https:\/\/www.guion78.com\/wordpress\/","name":"Guion Matteo","description":"Il Blog ? finalizzato a dare una mano nei problemi informatici di tutti i giorni a tutti quelli a cui pu\u00f2 essere utile, spiegato in modo semplice e passo a passo","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.guion78.com\/wordpress\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"it-IT"},{"@type":"Person","@id":"https:\/\/www.guion78.com\/wordpress\/#\/schema\/person\/dc866ea65964583c162e5476e0ed60e9","name":"Gua78","image":{"@type":"ImageObject","inLanguage":"it-IT","@id":"https:\/\/secure.gravatar.com\/avatar\/4e4699b3c931feae00228b34007799d5331f707aa1cfd35b40d0e0637d82cf18?s=96&d=mm&r=pg","url":"https:\/\/secure.gravatar.com\/avatar\/4e4699b3c931feae00228b34007799d5331f707aa1cfd35b40d0e0637d82cf18?s=96&d=mm&r=pg","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/4e4699b3c931feae00228b34007799d5331f707aa1cfd35b40d0e0637d82cf18?s=96&d=mm&r=pg","caption":"Gua78"},"description":"Amministratore del Portale","sameAs":["http:\/\/www.guion78.com"],"url":"https:\/\/www.guion78.com\/wordpress\/blog\/author\/administrator\/"}]}},"views":2100,"_links":{"self":[{"href":"https:\/\/www.guion78.com\/wordpress\/wp-json\/wp\/v2\/posts\/861","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.guion78.com\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.guion78.com\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.guion78.com\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.guion78.com\/wordpress\/wp-json\/wp\/v2\/comments?post=861"}],"version-history":[{"count":0,"href":"https:\/\/www.guion78.com\/wordpress\/wp-json\/wp\/v2\/posts\/861\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.guion78.com\/wordpress\/wp-json\/wp\/v2\/media?parent=861"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.guion78.com\/wordpress\/wp-json\/wp\/v2\/categories?post=861"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.guion78.com\/wordpress\/wp-json\/wp\/v2\/tags?post=861"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}