此外，分析公司同时表示 Oracle 数据库目前是 Java 平台中最流行的数据库系统，使用率为 17.3%。 而 PostgreSQL 位居第二，占 14.4%。

The Java JDK (Java Development Kit) is a software development environment that creates Java applications.

The license for Oracle JDK 17 will revert to the Oracle Technology Network License Agreement in September, and users will have some decisions to make.

If you want to download and install Java JDK 18 on Windows 11/10 computer, you will also have to set up a Path in Environment Variable.