jdbc command line code to do in visual studio: javac -cp ".;C:\Program Files (x86)\MySQL\Connector J 8.0\mysql-connector-j-8.0.31.jar" transaction.java

java -cp ".;C:\Program Files (x86)\MySQL\Connector J 8.0\mysql-connector-j-8.0.31.jar" transaction

to run tomcat in mrdark: ->cd C:\Program Files (x86)\Apache Software Foundation\Tomcat 9.0\bin ->startup.bat then->http://localhost:8080/

for servlet program:- files(index.jsp,web.xml) 1-setup maven and java 2-open vs code and create a folder 3-rightclick -> maven->newproject (webapp)->1.4->-> save all in same folder (index.jsp is the folder to provide the code) 4->rightclick on folder and click on open intergrated terminal and type "mvn clean package" 5-add tomcat to vs code 6-right click on (.war file) and run on tomcat 9-> then in tomcat right click and show in browser