Chan sekhar

You could split based on a bunch of delimiters like space, ',', \t, \n and so on and so forth

You could have 2 JButtons --> + and =
When you click +, a new JTextField opens up so that the user can enter a number. The user is restricted to a fixed number of inputs.
When you click =, a new JTextField with the sum is displayed.

Question 25>>
Answer is 4
The doAfterBody() will not be executed because the body class extends TagSupport, not BodyTagSupport.
The doStartTag() method returns EVAL_BODY_INCLUDE, ensuring that the tag body will be printed. The result is that Hello will be printed.