<\/p>\n
Java (programming language)<\/a> <\/p>\n JDK 17<\/a><\/p>\n <\/p>\n Differences Between Oracle JDK and OpenJDK<\/a> <\/p>\n Java 8 to 18: Most important changes in the Java Platform<\/a> Removed<\/p>\n Deprecated<\/p>\n Deprecated-for-removal<\/p>\n No Longer in Oracle JDK<\/p>\n Failed experiments<\/p>\n Improving the Java Programming Language<\/p>\n
\nJava (Programmiersprache)<\/a><\/p>\nOpenJDK<\/h1>\n
Tutorials<\/h1>\n
baeldung<\/h3>\n
\nDeep Dive Into the New Java JIT Compiler \u2013 Graal<\/a><\/p>\nYouTube<\/h1>\n
Java<\/h3>\n
\nJava 19 – The Best Java Release? – Inside Java Newscast #27<\/a><\/p>\n\n
\n
\n
\n
\n
\n
Local-Variable Type Inference – var<\/h4>\n
\r\nvar url = new URL("http:\/\/www.openjdk.com\/");\r\nvar con = urk.openConnection();\r\nvar is = new InputStreamReader(con.getInputStream());\r\nvar reader = new BufferedReader(is);\r\n<\/pre>\nSwitch Expressions<\/h4>\n
\r\nreturn switch(day) {\r\n case MONDAY, FRIDAY, SUNDAY -> 6;\r\n case TUESDAY -> 7;\r\n case THURSDAY, SATURDAY -> 8\r\n case WEDNESDAY -> 9;\r\n};\r\n<\/pre>\nText Blocks<\/h4>\n
\r\nvar html += """\r\n <tr>\r\n <td>Retweets: %s<\/td>\r\n <td>Likes: %s<\/td>\r\n <\/tr>\r\n""".formatted(t.getRetweetCount(),\r\n t.getLikeCount());\r\n<\/pre>\n
Records \/ Record Classes<\/h4>\n
\r\nrecord Point (int x, int y) {}\r\n<\/pre>\nPattern Matching for instanceof<\/h4>\n
\r\nif (obj instance of String s) {\r\n \/\/ String s = (String) obj not necessary anymore\r\n}\r\n[\/code]\r\n\r\n<h4>Sealed Classes<\/h4>\r\n[java]\r\npublic abstract sealed class Shape permits Circle, Rectangle, Square {...}\r\n\r\npublic final class Circle extends Shape {...}\r\n\r\npublic sealed class Rectangle extends Shape permits TransparentRectangle,\r\n FilledRectangle {...}\r\npublic final class TransparentRectangle extends Rectangle {...}\r\npublic final class FilledRectangle extends Rectangle {...}\r\n\r\npublic non-sealed class Square extends Shape {...}\r\n<\/pre>\nPattern Matching for switch<\/h4>\n
\r\nstatic String formatterPatternSwitch(Object o) {\r\n return switch(o) {\r\n case Integer i -> String.format("int %d", i);\r\n case Long l -> String.format("long %d", l);\r\n case Double d -> String.format("double %f", d);\r\n case String s -> String.format("String %s", s);\r\n default -> o.toString();\r\n };\r\n}\r\n<\/pre>\nPattern Matching for switch – Matching null<\/h4>\n
\r\nstatic String formatterPatternSwitch(Object o) {\r\n return switch(o) {\r\n case null -> "null";\r\n case Integer i -> String.format("int %d", i);\r\n case Long l -> String.format("long %d", l);\r\n case Double d -> String.format("double %f", d);\r\n case String s -> String.format("String %s", s);\r\n default -> o.toString();\r\n };\r\n}\r\n<\/pre>\nKeso Rupert<\/h3>\n