Has sbucareer abandoned this thread? Let's know where we can read your contributions. But then continue this forum. This could not be all there is to java.

sbucareer:


I did not abandon the thread, the fact that no one is trying to do the assessment apart from skima was enough to discourage me to continue.

You don't need to be discouraged. Just know some people are keenly reading even if not giving feed back. I'd have been trying the assignment out myself but for time. I am a medical practitioner write java and vb but stronger in vb. So i found time to read you at work but soon I'll be trying your assignment out and getting back to you. Pls don't stop.

I think you really deserve the rest. Welcome back

Actually,  I attempted the assignment. After all the coding,  the stuff failed to compile. I was stucked! But i came online for help no response.

So I tried to restart the assignment  to enable me see where i went wrong.

But thats no excuse for me.

I am working with java now using Netbeans. ( Thanks to Mimoh who gave me the CD) Though am also engaged in alot of project "stockbrokerage web app","Mini-ecommerce", Elearning site and a government e-tax solution which i was developing with PHP( delta state) wish i had to complete with same time.

I'd to split my time,

But am back with java. Now i learns alone.

Did u have any reference site where i can learn JAVA from scratch.

Here is mine, Hey you are doing a good though I never did like Java, I just had to do something to cheer you up.
Hey take a good look at the code. I used JBuilder. Sun's download server seems to be down.
//at least the last time I checked. JBuilder has an IDE but I used the command line with jdk1.4.
Dont give up now. Besides, JBuilder can be found at www.borland.com



import java.lang.Object;
import java.io.*;
public class Temperature extends Object{
// Temperature Class coded by h4rdc0d3d

private static double celsiusTemp;
private static double fahrenheitTemp;
public Temperature(double temp, char f)
{
switch (f)
{
case 'f':
fahrenheitTemp = temp;
break;
case 'c':
celsiusTemp = temp;
break;
default:
System.out.println("Houston, We have a problem !";
}
}
public static double getTempFahrenheit()
{
return fahrenheitTemp;
}
public static double getTempCelsius()
{
return celsiusTemp;
}
public static double convertF2C(double fah)

{
double cel;
cel = (fah-32)* 5/9; // Formula to convert fahrenheit to Celsius
return cel;
}
public static double convertC2F( double cel)
{
double fah;
fah = (cel*(9/5)+32); // formula to do vice versa
return fah;
}
public void setcel(double cel)
{
celsiusTemp = cel;
}
public void setfah(double fah)
{
fahrenheitTemp = fah;




}
public static void main(String[] args)
{
Temperature Temp;
Temperature TempFaulty;
Temp = new Temperature(0, 'c'); // try switching between 'c' and 'f'
System.out.println("The temperature of Temp in celsius is " +Temp.getTempCelsius());
System.out.println("The temperature of Temp in fahrenheit is "

+Temp.convertC2F(Temp.getTempCelsius()));
Temp.setcel(37.7);
System.out.println("The temperature of a normal human in celsius is

"+Temp.getTempCelsius());
System.out.println("The temperature of a normal human in fahrenheit is

"+convertC2F(Temp.getTempCelsius()));
Temp.setfah(212);
System.out.println("The temperature of boiling water in fahrenheit is

"+Temp.getTempFahrenheit());
System.out.println("The temperature of boiling water in celsius is

"+convertF2C(Temp.getTempFahrenheit()));
TempFaulty = new Temperature(4,'n');

}
}

Very nice notes sbucareer. Keep up the good work.

I noticed that below you mentioned compile, but I believe it was a typo and you actually meant translates or converts.

"The browser on the second hand compiles the HTML to what we see as visual presentation of website pages"

@SBU career, sorry i didnt reply to this thread for a long time. I am glad you moved a bit to web applications. I am learning javascript for now as its part of my first year course and its the first programming language i am meant to learn. Any help u can offer?

Good job gbengaijot. I just want to clarify that JavaScript is not a programming language but a scripting language. You cannot use it to build standalone applications. But, it use is mainly to enhance the functionality web pages.

gbengaijot:

I am learning javascript for now as its part of my first year course and its the first programming language i am meant to learn. Any help u can offer?

@bossman, yeah you are right oooo. sorry i should have said scriptiing language.
THanks man

Well done!

@sbucareer, i understand oooo. sort off. u mean like a javascript library.

I know I'm very late in this and I'm sorry for drawing you guys back.

I am also interested in the Java programming stuff and I've been following this thread since yesterday. (I actually don't know jack about programming or java or anything related to them).

I have downloaded textpad (I got the licensed version ) but anytime I try compiling, it says, "The system cannot find the file specified". When I try running C:\> javac helloworld.java on Command prompt, it says "'javac' is not recognized as an internal or external command, operable program or batch file error". The thing is, javac.exe is no where to be found on my system so what should I do?

Note: I already did all the necessary configuration in the Environment variables.

P.S. I just found out that I have JRE 1.5.0_07. What should I do?

You need to download the JDK first. You can get it from sun's site. You have the Java Runtime Environment (JRE). That's just allows you to execute java progarams, for example an applet.


After installing the JDK, then reinstall textpad, it will find the JDK and do any necessary setup that will allow you to compile/execute from textpad's menu.

[font=bradley hand itc][size=12pt]
To find out if your JSP is working, copy or type this code into a text editor or IDE and save it as index.jsp and put it in your temperature root directory.

[B]
<html>
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f" %>
<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h" %>

<f:view>
<head>
<title>A Simple JavaServer Faces Application</title>
</head>
<body>
<h:form>
<h3>
Welcome to JavaServer Faces,
<h:outputText value="#{user.name}"/>!
</h3>
</h:form>
</body>
</f:view>
</html>
[/B]

Create a configuration file and put it in the WEB-INF directory called faces-config.xml i.e. temperature/WEB-INF/faces-config.xml. Here is how the file will look like

<?xml version="1.0"?>

<!DOCTYPE faces-config PUBLIC
"-//Sun Microsystems, Inc.//DTD JavaServer Faces Config 1.0//EN"
"http://java.sun.com/dtd/web-facesconfig_1_0.dtd">

<faces-config>
<navigation-rule>
<from-view-id>/index.jsp</from-view-id>
<navigation-case>
<from-outcome>login</from-outcome>
<to-view-id>/welcome.jsp</to-view-id>
</navigation-case>
</navigation-rule>

<managed-bean>
<managed-bean-name>user</managed-bean-name>
<managed-bean-class>UserBean</managed-bean-class>
<managed-bean-scope>session</managed-bean-scope>
</managed-bean>
</faces-config>

Finally, create create a bean called UserBean and put it in your application directory i.e. temperature/WEB-INF/classes/UserBean the class should look like this

public class UserBean {
  String name;
  String password;

  public String getName() {
      return name;

}

public void setName(String newValue) {
    name = newValue;
}

  public String getPassword() {
          return password;
  }

  public void setPassword(String newValue) {
        password = newValue;
  }

}

Also make sure you configure your application web.xml by doing this i.e. temperature/WEB-INF/web.xml

<?xml version="1.0"?>

<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd">

<web-app>
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.faces</url-pattern>
</servlet-mapping>

<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>

Don't be intimidated, once you have got the hang of it, it is dead easy. Try this and master it before we start the web application development. Your success of this lesson would be your mastering this concept.

I will explain what does what when we start but it will be a good idea if you do some homework to find out what does what before we start.
[/FONT][/SIZE]

@Bossman, thanks. Everything is all set now.

@sbucareer

Why JSF ? why not struts or spring mvc . JSF is a freaking cumbersome framework to work with. The xml configurations are very horrible and things just dont gel together easily at all.