What's the difference between an Abstract Class and Interface in Java ?

Explain JSP directives in JAVA language ?

How is JavaScript different from Java ?

What is the feature of JAVA language ?

What is the default switch case?

What are the various access specifiers for Java classes?

What is the role of naming convention rule in java?

What is palindrome number?

StringBuffer and StringBuilder

String vs StringBuilder vs StringBuffer in Java ?

Servlet and JSP

virtual functions