1: Java
Most of my classes used java when learning programming skills.
Frameworks I have worked with in Java include Tomcat and Spring Boot.2: Javascript / Typescript
Used mostly in personal projects. I have worked created projects that run in the browser, in Node.js, and in web workers.
3: SQL
I have used SQL servers in both my school projects and in my personal projects.
4: HTML / CSS
5: PHP
6: Bash
I have created bash scripts to help automatize things on my hobby server. For example I have one script that will stop a minecraft server, download and unpack the update, backup the old server, before installing the update and then restarts the server.