{"id":4032,"date":"2018-01-29T12:17:45","date_gmt":"2018-01-29T10:17:45","guid":{"rendered":"http:\/\/www.tutego.de\/blog\/javainsel\/?p=4032"},"modified":"2018-01-29T12:17:45","modified_gmt":"2018-01-29T10:17:45","slug":"jep-draft-fuer-raw-string-literals-in-java","status":"publish","type":"post","link":"https:\/\/www.tutego.de\/blog\/javainsel\/2018\/01\/jep-draft-fuer-raw-string-literals-in-java\/","title":{"rendered":"JEP Draft f\u00fcr „Raw String Literals“ in Java"},"content":{"rendered":"

In der Diskussion ist der „Back-Tick“, sodass es so aussehen w\u00fcrde:<\/p>\n

File Paths Example<\/h3>\n\n\n\n\n
Traditional String Literals<\/th>\nRaw String Literals<\/th>\n<\/tr>\n
\n
Runtime.getRuntime().exec(\"\\\"C:\\\\Program Files\\\\foo\\\" bar\");\n<\/pre>\n<\/td>\n
\n
Runtime.getRuntime().exec(`\"C:\\Program Files\\foo\" bar\"`);\n<\/pre>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
Multi-line Example<\/h3>\n\n\n\n\n
Traditional String Literals<\/th>\nRaw String Literals<\/th>\n<\/tr>\n
\n
String html = \"<html>\\n\"\n              \"    <body>\\n\" +\n              \"\t\t    <p>Hello World.<\/p>\\n\" +\n              \"    <\/body>\\n\" +\n              \"<\/html>\\n\";\n<\/pre>\n<\/td>\n
\n
String html = `<html>\n                   <body>\n                       <p>Hello World.<\/p>\n                   <\/body>\n               <\/html>\n              `;\n<\/pre>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
Regular Expression Example<\/h3>\n\n\n\n\n
Traditional String Literals<\/th>\nRaw String Literals<\/th>\n<\/tr>\n
\n
System.out.println(\"this\".matches(\"\\\\w\\\\w\\\\w\\\\w\"));\n<\/pre>\n<\/td>\n
\n
System.out.println(\"this\".matches(`\\w\\w\\w\\w`));\n<\/pre>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
Output:<\/p>\n
true<\/code><\/pre>\n
Polyglot Example<\/h3>\n\n\n\n\n
Traditional String Literals<\/th>\nRaw String Literals<\/th>\n<\/tr>\n
\n
String script = \"function hello() {\\n\" +\n                \"   print(\\'\\\"Hello World\\\"\\');\\n\" +\n                \"}\\n\" +\n                \"\\n\" +\n                \"hello();\\n\";\nScriptEngine engine = new ScriptEngineManager().getEngineByName(\"js\");\nObject obj = engine.eval(script);\n<\/pre>\n<\/td>\n
\n
String script = `function hello() {\n                    print('\"Hello World\"');\n                 }<\/pre>\n
hello();\n            `<\/code><\/pre>\n
ScriptEngine engine = new ScriptEngineManager().getEngineByName(„js“); Object obj = engine.eval(script);<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
Output:<\/p>\n
\"Hello World\"<\/code><\/pre>\n
Database Example<\/h3>\n\n\n\n\n
Traditional String Literals<\/th>\nRaw String Literals<\/th>\n<\/tr>\n
\n
String query = \"SELECT EMP_ID, LAST_NAME\\n\" +\n               \"FROM EMPLOYEE_TBL\\n\" +\n               \"WHERE CITY = 'INDIANAPOLIS'\\n\" +\n               \"ORDER BY EMP_ID, LAST_NAME;\\n\";\n<\/pre>\n<\/td>\n
\n
String query = `SELECT EMP_ID, LAST_NAME\n                FROM EMPLOYEE_TB\n                WHERE CITY = 'INDIANAPOLIS'\n                ORDER BY EMP_ID, LAST_NAME;\n               `;\n<\/pre>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
Ich bin gespannt, ob das in Java 10 kommen wird. Ich dachte schon, dass Java 10 Release wird eher klein, doch zusammen mit den var-Variablen sind das zwei kleine, aber bedeutende Sprach\u00e4nderungen.<\/p>\n
Details unter\u00a0http:\/\/openjdk.java.net\/jeps\/8196004<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"
In der Diskussion ist der „Back-Tick“, sodass es so aussehen w\u00fcrde: File Paths Example Traditional String Literals Raw String Literals Runtime.getRuntime().exec(„\\“C:\\\\Program Files\\\\foo\\“ bar“); Runtime.getRuntime().exec(`“C:\\Program Files\\foo“ bar“`); Multi-line Example Traditional String Literals Raw String Literals String html = „<html>\\n“ “ <body>\\n“ + “ <p>Hello World.<\/p>\\n“ + “ <\/body>\\n“ + „<\/html>\\n“; String html = `<html> <body> <p>Hello […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false,"_links_to":"","_links_to_target":""},"categories":[1,107],"tags":[],"class_list":["post-4032","post","type-post","status-publish","format-standard","hentry","category-allgemein","category-java-10"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.tutego.de\/blog\/javainsel\/wp-json\/wp\/v2\/posts\/4032","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.tutego.de\/blog\/javainsel\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tutego.de\/blog\/javainsel\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tutego.de\/blog\/javainsel\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tutego.de\/blog\/javainsel\/wp-json\/wp\/v2\/comments?post=4032"}],"version-history":[{"count":10,"href":"https:\/\/www.tutego.de\/blog\/javainsel\/wp-json\/wp\/v2\/posts\/4032\/revisions"}],"predecessor-version":[{"id":4042,"href":"https:\/\/www.tutego.de\/blog\/javainsel\/wp-json\/wp\/v2\/posts\/4032\/revisions\/4042"}],"wp:attachment":[{"href":"https:\/\/www.tutego.de\/blog\/javainsel\/wp-json\/wp\/v2\/media?parent=4032"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tutego.de\/blog\/javainsel\/wp-json\/wp\/v2\/categories?post=4032"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tutego.de\/blog\/javainsel\/wp-json\/wp\/v2\/tags?post=4032"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}