<%@page import=”model.PersonManager”%>
<%
int personHeight = Integer.valueOf(request.getParameter(“txtHeight”));
int personWeight = Integer.valueOf(request.getParameter(“txtWeight”));
PersonManager myManager = new PersonManager();
%>
Person Height : <%=personHeight%><br>
Person Weight : <%=personWeight%><br>
BMI : <%= myManager.calculateBMI(personHeight, personWeight) %>
<%@page import=”model.PersonManager”%>
<%@page import=”model.Person”%>
<%
String personName = (String) request.getParameter(“txtName”);
String personAge = (String) request.getParameter(“txtAge”);
Person myPerson = new Person();
PersonManager myManager = new PersonManager();
myPerson.setPersonName(personName);
myPerson.setPersonAge(personAge);
myManager.addPerson(myPerson);
%>
Person <%= myManager.getMyPersons().get(0).getPersonName() %> Added Successfully! <br>
Total Size of Array : <%= myManager.getMyPersons().size() %>
<br>
<strong>Calculate BMI for this guy …</strong><br>
//<form id=”frmBMI” name=”frmBMI” method=”post” action=”CalculateBMI.jsp”>
Height : <input name=”txtHeight” type=”text” id=”txtHeight” size=”50″ /><br>
Weight : <input name=”txtWeight” type=”text” id=”txtWeight” size=”50″ /><br>
<input type=”submit” name=”butAdd” id=”butAdd” value=”Calculate BMI” />
</form>
========================
<%@page import=”model.*”%>
<html>
<head>
<head>
<body>
<strong>Person Manager</strong>
<br>
Let’s add a Person!<br>
<form id=”frmBuy” name=”frmBuy” method=”post” action=”AddPerson.jsp”>
Name : <input name=”txtName” type=”text” id=”txtName” size=”50″ /><br>
Age : <input name=”txtAge” type=”text” id=”txtAge” size=”50″ /><br>
<input type=”submit” name=”butAdd” id=”butAdd” value=”Add this Person” />
</form>
</body>
</html>
package model;
import java.util.ArrayList;
public class PersonManager {
private ArrayList <Person> myPersons = new ArrayList<Person>();
public ArrayList<Person> getMyPersons() {
return myPersons;
}
public void setMyPersons(ArrayList<Person> myPersons) {
this.myPersons = myPersons;
}
public void addPerson(Person myPerson)
{
myPersons.add(myPerson);
}
public double calculateBMI(double height, double weight)
{
double BMI = weight / ( height * height );
return BMI;
}
}
package model;
public class Person {
private String personName;
private String personAge;
public String getPersonName() {
return personName;
}
public void setPersonName(String personName) {
this.personName = personName;
}
public String getPersonAge() {
return personAge;
}
public void setPersonAge(String personAge) {
this.personAge = personAge;
}
}
<html>
<head>
<strong>Let’s have fun with Javascript</strong>
</head>
<body>
<br><br>
<form action=”index.html” onsubmit=”return validate_form(this)” method=”post”>
<strong>Name : </strong><input type=”text” name=”txtName”><br>
<strong>Age : </strong><input type=”text” name=”txtAge” onKeyUp=”javascript:checkNumber(txtAge);”>
<br><br>
<input type=”submit” value=”Submit”>
</form>
<form action=”index.html” onsubmit=”return calculateBMI(this)” method=”post”>
<strong>Height : </strong><input type=”text” name=”txtHeight”><br>
<strong>Weight : </strong><input type=”text” name=”txtWeight”>
<input type=”submit” value=”Calculate BMI”>
</form>
<br><br>
<table border = “1″>
<tr>
<td>Column 1 Row 1</td>
<td>Column 2 Row 1</td>
<tr>
<td>Column 1 Row 2</td>
<td>Column 2 Row 2</td>
</tr>
</table>
</body>
</html>
function calculateBMI(thisform)
{
with (thisform)
{
var height = txtHeight.value;
var weight = txtWeight.value;
var bmi = 0;
bmi = weight / (height*height);
alert(“YOUR BMI : ” + bmi);
}
}
function validate_required(field,alerttxt)
{
with (field)
{
if (value==null||value==”")
{
alert(alerttxt);
return false;
}
else
{
return true
}
}
}
function validate_form(thisform)
{
with (thisform)
{
if (validate_required(txtName,”Name must be filled out!”)==false)
{
txtName.focus();
return false;
}
if (validate_required(txtAge,”Age must be filled out!”)==false)
{
txtName.focus();
return false;
}
}
}
<script type=”text/javascript”>
//var mikExp = /[$\\@\\\#%\^\&\*\(\)\[\]\+\_\{\}\`\~\=\|]/;
var acceptedInput = /[0123456789]/;
function checkNumber(val)
{
var strPass = val.value;
var strLength = strPass.length;
var lchar = val.value.charAt((strLength) – 1);
if(lchar.search(acceptedInput) == -1)
{
var tst = val.value.substring(0, (strLength) – 1);
val.value = tst;
}
}
</script>
