What version of Java was used in the last implementation of the project you worked on?

The version of Java used in the last project depends on specific requirements and the environment. For example, Java 8 or Java 11 are often used because they are long-term support (LTS) releases and are widely supported.

If the project is new and allows the use of modern features, Java 17 or newer may be applied.

For an exact answer, the specific project needs to be specified, but usually LTS versions are chosen for stability and support.