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The Action Class is type of the Model and is a wrapper around the business logic. The purpose of Action Class is to change the HttpServletRequest to the business logic. To use the Action, we require to Subclass and overwrite the execute () method. In the Action Class all the database/business processing is completed. It is advisable to perform all the database related stuffs in the Action Class. The ActionServlet (commad) passes the parameterized class to Action Form using the execute () method. The return type of the execute method is ActionForward which is taken by the Struts Framework to forward the request to the file as per the value of the returned ActionForward object.
What is JavaServer Faces event and listener model? Ans) A mechanism for verifying how events emitted by JavaServer Faces UI components are handled. This model is based on the Ja
What Can an Applet Do? An applet can: • Draw pictures on a web page • Create a new window and draw in it. • Play sounds. • Receive input from the user by the keyboard or
Project Requirements Write and test a Java program to play Minesweeper using Model-View-Presenter design (The model is an interface defining the data to be displayed or other
Comparable interface: The "Comparable" allows itself to compare with other same types of object. The function compareTo() is specified in the interface. Several of the standa
The program: 2 classes one called Student, one called Grades Functional Requirements: Ask for how many students u need to enter the program must: prompt the user to enter the
How can we use Observer and Observable ?
What type of information can be stored in a database? In a database we can store several types of informations like: • Numbers, Booleans, text • Sounds • Images • Video
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how to retrieve data from Excel file, and display that data in table on jsp page?
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