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How do you use servlets in Java web applications?

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Servlets are Java classes that extend the capabilities of servers that host applications accessed by means of a request-response programming model. They are a key component of Java web applications and are used to extend the functionality of web servers by generating dynamic content, managing sessions,...
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Servlets are Java classes that extend the capabilities of servers that host applications accessed by means of a request-response programming model. They are a key component of Java web applications and are used to extend the functionality of web servers by generating dynamic content, managing sessions, handling user requests, and more.  

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