Java beans and JSP Example Atoms

JavaBeans Example: Atoms.java, Atoms.jsp, Atoms.class, Atoms.html

	 1. The steps 

	1. Create new directory : newBeans under:
	C:\Program Files\Apache Software Foundation\Tomcat 6.0\webapps\examples\WEB-INF\classes\
	directory. And then a new one under newBeans: newBeans\AtomBeans

	2. Place the Java program Atoms in it :
	C:\Program Files\Apache Software Foundation\Tomcat 6.0\webapps\examples\WEB-INF\classes\newBeans\AtomBeans\Atoms.java
	The Java program Atoms.java will have the following package:
	package newBeans.AtomBeans; (subdirectories after \classes\)

	3. Create a subdirectory (or subdirectories) under \webapps\ like this:
	C:\Program Files\Apache Software Foundation\Tomcat 6.0\webapps\examples\NewWork\BeansAtoms\
	\examples\ already exist; NewWork\BeansAtoms\  is created. 

	4. Place the JSP program Atoms.jsp in it as follows:
	C:\Program Files\Apache Software Foundation\Tomcat 6.0\webapps\examples\NewWork\BeansAtoms\Atoms.jsp

	5. Rum the program Atoms.jsp by browsing:
	http://localhost/examples/NewWork/BeansAtoms/Atoms.jsp



	 2. The bean program Java:Atoms.java
	
		package newBeans.AtomBeans;
		
		public class Atoms implements java.io.Serializable {
		
		private static final long serialVersionUID = 1L;
		
		//Fields = properties
		private String element = null;
		private int charge = 0;
		private int shell = 0;

		// Constructor	
		public Atoms() {}

		// Methods: Setter
		public void setelement(String element) {
		this.element = element;
		}

		public void setcharge(int charge) {
		this.charge = charge;
		}

		public void setshell(int shell) {
		this.shell = shell;
		}

		// Method: Getter
		public String getelement() {
		return this.element;
		}

		public int getcharge() {
		return this.charge;
		}

		public int getshell() {
		return this.shell;
		}

		}


	 3. Atoms.jsp 


		<html>
		<head>
		<title> The atoms bean JSP Page</title>
		</head>
		<body>

		<%@ page language="java" import="newBeans.AtomBeans.Atoms"%> 
		<%@ page contentType="text/html" %>


		<%-- Create the JavaBean: of ID = Bohr --%>
		<jsp:useBean id = "Bohr" scope="request"  class = "newBeans.AtomBeans.Atoms">
		<jsp:setProperty name = "Bohr" property = "element" value = "Hydrogen" />
		<jsp:setProperty name = "Bohr" property = "charge" value="1" />
		<jsp:setProperty name = "Bohr" property = "shell" value="1" /> 
		</jsp:useBean>

		<p>
		Retrieve the properties from JavaBean and display their values :<br>
		The charge and the shell of the element 
		<jsp:getProperty name="Bohr" property = "element"/> 
		are respectively:
		<jsp:getProperty name="Bohr" property = "charge"/> 
		and 
		<jsp:getProperty name="Bohr" property = "shell"/>. 
		<br>

		</p>
		</body>
		</html>


	 4.The result 	
	
		The result under: http://localhost/examples/NewWork/BeansAtoms/Atoms.jsp 
		is:

		Retrieve the properties from JavaBean and display their values :
		The charge and the shell of the element Hydrogen are respectively: 1 and 1.