Java beans and JSP first step

JavaBeans, the first step

	The idea of beans is to have some Java programs (beans) 
	available to use for any other applications. For example, 
	a program TheSimpleBean.java, once compiled, its 
	corresponding TheSimpleBean.class file will be used 
	by any other application. In java, to set this little 
	related program (bean), this bean must be serializable, 
	has an empty constructor, and has getter and 
	setter methods (the properties); like this:

	public class TheSimpleBean implements java.io.Serializable {

		package NestDirectory;
		
		private Type PropertyName;
		
		public TheSimpleBean () {}
		
		public Type getPropertyName() {
		return PropertyName;
		}

		public void setThePropertyName(Type ThisPropertyName) {
		PropertyName = ThisPropertyName;
		}
	}

	The class implements the interface Serializable class. This class has no methods;
	It allows just the object to be stored and then retrieved some later time. In order to 
	locate the bean, we mention at first its nest directory as a package. This directory 
	is a subdirectory of /WEB-INF/classes/, rekated to Tomcat. That is the file 
	TheSimpleBean.java is located at : /WEB-INF/classes/NestDirectory/. 
	If there are other subclasses X1, X2, ...Xn between /WEB-INF/classes/, for example: 
	/WEB-INF/classes/X1/X2/X3/NestDirectory/, we mention the package as follows:

	package X1.X2.X3.NestDirectory;

	Now, we will use this JavaBean in JSP program. More precisely, JSP will call 
	TheSimpleBean.class by the following tags properties:

	<jsp:useBean 
	ID = "Object Name" 
	class="Package/NameOfClass" 
	/>
	<jsp:setProperty  
	name ="ID Of JavaBean, ie Object Name" 
	property = "PropertyName" 
	value="New value of this Property"
	/>
	<jsp:getProperty 
	name = "ID Of JavaBean, ie Object Name" 
	property="PropertyName"
	/>

	We built TheSimpleBean.jsp like this:
	<html>
	<head>
	<title> TheSimpleBean JSP Page</title>
	</head>
	<body>

	<jsp:useBean id = "ObjectName" class = "X.NestDirectory.TheSimpleBean">
	<jsp:setProperty name = "ObjectName" property="PropertyName" value="The value of the PropertyName" />
	</jsp:useBean>
	 
	<jsp:getProperty name="ObjectName" property = "PropertyName"/>

	</body>
	</html>

	And place it in the in /WEB-APP folder.