Super Type Tokens
Thoughts about Programming Languages, Science and Philosophy. When we added generics to Java in JDK5, I changed the class java.lang.Class to become a generic type. For example, the type of String.class is now Class<String>. Gilad Bracha coined the term type tokens for this. My intent was to enable a particular style of API, which Joshua Bloch calls the THC, or Typesafe Heterogenous Container patte
型推論ã®æ£è§£ãŒåˆ†ã‹ã‚‰ãªã„ - ã—ã’るメモ
自分ã‚も。ã ã‘ã©ã‚ã‹ã‚‹äººæ•™ãˆã¦ãã ã•ã„。 public static void main(String...args) { Integer a = 1; Long b = 2; Object result = method(a, b); // resultã®åž‹ã¯ï¼Ÿ } static <T> T method(T a, T b) { return null; } ã“ã®method(a, b)ã®åž‹æŽ¨è«–ã§ã€Tã¯ã©ã®ã‚ˆã†ãªåž‹ã«ç®—出ã•ã‚Œã‚‹ã‹ã¨ã„ã†å•é¡Œã€‚ 15.12.2.8 Inferring Unresolved Type Argumentsを追ã„ã‹ã‘ãªãŒã‚‰é€²ã‚“ã§ã„ãæ„Ÿã˜ã€‚ãŸã ã—ã€åž‹æŽ¨è«–ã®å¾ŒåŠéƒ¨åˆ†ã ã‘。 ãŠã•ã‚‰ã„ã—ã¦ãŠãã¨ã€Integer, Long ã¯ãã‚Œãžã‚Œä¸‹è¨˜ã®ã‚ˆã†ãªå®£è¨€ã€‚ class Integer extends Number implements Comparable<Integer>
考ãˆã‚‹ã“ã¨ã¯åŒã˜ - odz buffer
çµå±€ã€ã¿ã‚“ãªåŒã˜ã“ã¨ã‚’考ãˆã‚‹ã€‚ ref:http://d.hatena.ne.jp/bleis-tift/20070731/1185812617 ref:http://d.hatena.ne.jp/odz/20061025/1161837641 ref:http://www.coins.tsukuba.ac.jp/~i021216/diary/?date=20070109#p01 (ãªãœã‹ 403 ã§è¦‹ãˆãªã„) ã‚ã¨ã€Builder パターンã®ä¾‹ã¨ã‹ ref:http://nicolas.lehuen.com/index.php/post/2006/10/07/113-java-map-literals-continued
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