If you see java version "17.0.x" , you win. If you see an older version, the installer failed to move the new path to the top of the list. Go fix it manually in Environment Variables.
JDK 17在bin目录下保留了 java 启动器，同时允许我们在启动应用时直接挂载JVM参数来定制垃圾回收器。JDK 17的演进里程碑之一是，它在低延迟场景下表现极其出色，同时通过并发的标记和压缩，可以减少程序长时间的STW（Stop-The-World）停顿。
For desktop Windows apps (Swing, JavaFX), Shenandoah GC reduces "UI stutter" to near zero. JDK 17’s java.exe includes backported fixes that make Shenandoah outperform G1 on heaps between 4GB–16GB. jdk17windowsx64binexe better
: JDK 17 is approximately 8.66% faster than JDK 11 when using the default G1 Garbage Collector.
Most user-friendly; includes a setup wizard and repair mechanisms. x64 MSI Installer Enterprise / IT Admins If you see java version "17
It installs reference documentation and tools directly into the Start menu for quick access. 5. Security and Compatibility
如果需要全局生效，还可以添加一个系统变量 _JAVA_OPTIONS ，值为 -XX:UseAVX=2 ，然后重启机器。 Most user-friendly; includes a setup wizard and repair
除了Oracle版exe和zip之外，还有一些MSI格式的安装包（例如Microsoft Build of OpenJDK官网提供的msi，或者OpenLogic JDK提供的msi安装文件）。MSI安装包在Windows环境下的优点是便于企业级批量部署与静默安装，对于普通个人开发者而言，zip仍然是最透明、最干净的选择。
A JDK installation is useless if your Windows system cannot find the java.exe binary. The magic happens in the bin folder (e.g., C:\Program Files\Java\jdk-17\bin ), which contains the essential executables ( java , javac , javaw.exe ). Properly setting your environment variables is non-negotiable.
To truly make your jdk17windowsx64binexe setup better, adopt these professional practices: