In previous example described in introduction to JSP, We didn`t use any java statement or code in the file. If the developer wants to put any java code in that file then the developer can put it by the use of jsp tags(elements).
There are mainly three group of jsp tags(elements) available in java server page :
1 ) JSP Scripting elements
2 ) JSP Directive elements
3 ) JSP Standard Action elements
All three elements described in next three topic.