Though Java already has a character type and char keyword to represent and manipulate characters, the language also requires a Character class for two reasons: Character c1 = new Character ('A'); ...
Java 领域的 JSON 框架有点像进入了“战国时代”。JDK 28 自带了 JSON API，Fastjson 也另立门户搞了 Fastjson2，然后最近 Apache 的 Fory JSON 1.6 也强势发布了，再加上 Jackson、Gson 等框架，一下子就让 Java 在 JSON 处理方面有热闹起来了。 Fastjson2 重头开始，还是主打性能，但是在性能领域 Apache F ...
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