note

Java Silver: Java標準ライブラリ

hashCode() とはオブジェクトの**ハッシュ値（整数）**を返すメソッド。HashMap, HashSet などで 格納場所の計算に使われる。 Stream.of() / .stream() – ストリームの作成 ...
GitHub

java中HashSet详解.md

由上面源程序可以看出，HashSet 的实现其实非常简单，它只是封装了一个 HashMap 对象来存储所有的集合元素，所有放入 HashSet ...
InfoWorld

JDK 7: The Diamond Operator

Project Coin provides numerous “small language enhancements” as a subset of the new JDK 7 features. I recently blogged on Project Coin‘s switching on Strings and in this post I write about the new ...
GitHub

ClassCastException due to HashSet being used in a non thread-safe way

OpenJDK Runtime Environment Temurin-21.0.7+6 (build 21.0.7+6-LTS) OpenJDK 64-Bit Server VM Temurin-21.0.7+6 (build 21.0.7+6-LTS, mixed mode, sharing) Error scanning ...