What is a Declaration?
You must declare the variable or method before you use it in the JSP page. The Declaration is a JSP element use to declare the variable or methods that you can use in Java code later in the JSP page. JSP Declaration : <%! code %> :- Code is inserted in body of servlet class, outside of service method. Example : The declaration must be valid in the scripting language used in the JSP file. <%! int i = 0; %> <%! int a, b, c; %>