What is the difference between doGet() and doPost() ?

In an interview setting, when asked about the difference between doGet() and doPost() methods in servlets, you can explain as follows:

The doGet() and doPost() methods are fundamental to the servlet API in Java, handling different types of HTTP requests.

doGet() Method:

• Usage: The doGet() method is typically used to handle HTTP GET requests. This occurs when a user clicks on a hyperlink, enters a URL into the browser's address bar, or submits an HTML form with the method attribute set to "GET".
• Data Transmission: Parameters are appended to the URL and sent along with the header information. For example, http://www.example.com/servlet?param1=value1&param2=value2.
• Data Limitation: There is a limit to the amount of data that can be sent, typically around 2KB, due to URL length restrictions.
• Idempotence: The doGet() method should be idempotent, meaning it can be called multiple times without different outcomes or side effects.
• Security: Since parameters are exposed in the URL, doGet() is less secure and not suitable for sensitive data transmission.
• Performance: It is generally faster, especially if the response content length is set, as the same connection is reused[1][3].

doPost() Method:

• Usage: The doPost() method is used to handle HTTP POST requests, which typically occur when an HTML form is submitted with the method attribute set to "POST".
• Data Transmission: Data is sent in the body of the request, not in the URL, which allows for ...