⟩ Name the default thread at the time of starting the program?
main thread
main thread
How can a servlet refresh automatically if some new data has entered the database?
Can we use the constructor, instead of init(), to initialize servlet?
How can I send user authentication information while makingURLConnection?
Request parameter How to find whether a parameter exists in the request object?
What is new in ServletRequest interface?(Servlet 2.4)
When using servlets to build the HTML, you build a DOCTYPE line, why do you do that?
Tell us what are checked and unchecked exceptions? When do you use them?
Explain me when do you need to override the equals and hashCode methods in Java?
Tell us how can you swap the values of two numeric variables without using any other variables?
Tell us what do you mean by aggregation?