<HTML>
<BODY>
<Form method = post action = "SaveName. jsp">
What's your name? <Input type = text name = username SIZE = 20> <BR>
What's your e-mail address? <Input type = text name = email SIZE = 20> <BR>
What's your age? <Input type = text name = age SIZE = 4>
<P> <input type = SUBMIT>
</FORM>
</BODY>
</HTML>
To collect data, we need to define a Java class so that it has "username", "email", and "age" areas, in addition, we need to provide the "setter" method "setUsername", "setEmail", and "setAge ". This "setter" method is just a method that starts with "set" and is followed by a region name. The first letter of the region name must be in uppercase. Therefore, if the region is "email", its "setter" method is "setEmail ". Similarly, the "Getter" method is similar to the definition. It only replaces "set" with "get. In addition, setters and getters must be public ). For example:
Public class UserData {
String username;
String email;
Int age;
Public void setUsername (String value)
{
Username = value;
}
Public void setEmail (String value)
{
Email = value;
}
Public void setAge (int value)
{
Age = value;
}
Public String getUsername () {return username ;}
Public String getEmail () {return email ;}
Public int getAge () {return age ;}
}
Start building with 50+ products and up to 12 months usage for Elastic Compute Service
1 on 1 presale consultation
24/7 Technical Support 6 Free Tickets per Quarter Faster Response
Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.
A comprehensive suite of global cloud computing services to power your business
Payment Methods We Support
