why use servlet ? HTML is capable to handle and maintane request .
Servlets are much faster.They use a standard API that is supported by many web servers.They have all the advantages of the Java programming language, including ease of development and platform independence.They can access the large set of APIs available for the Java platform.They can handle multiple requests concurrently and can syncronize requests.
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They are very useful.
ok , i got my answer thanks man