You never instantiate an object with the name br.

Being familiar with the Java API, available online here (http://java.sun.com/javase/6/docs/api/), is imperative if you plan to program any further in Java. Another fantastic resource is...

This forum has no such policy, in fact you can reply to threads from over 5 years ago...if you really wanted too. Thank you for posting the solution to your problem, and for marking the thread as...

Step 1: Learn Java.
Step 2: Google.

Your link doesn't work, you have an extra http://

Here (http://java.sun.com/docs/books/tutorial/uiswing/components/combobox.html) is a working version of your link :)

No. Put some effort into the project yourself. We can help you with your program if you get stuck. You will never learn if people do the work for you.

boolean display = A.B(inputInfo);

The return statement you used is legal. You can return false, true, or a boolean variable when using a boolean method. When you call A.B() that line of code...

Why would you do this in your GeometricObject class? Just create a driver class, here's the one I made.
public class Tester {
public static void main(String[] args) {
Triangle tri = new...

public Triangle(double s1, double s2, double s3)
{
this.side1=s1;
this.side2=s2;
this.side3=s3;
}



public Isosceles( double EQside, double otherside)

You need to post the section of code that is giving you trouble here, not the whole thing, only where you are getting an error (don't forget to tell us what error/exception you are getting.) A great...

He means do it yourself. Once you start writing and come across a concept you don't understand, ask for a little help (in the correct forum.)

And I want a billion dollars :-/

Easiest way to do what? You haven't told us what you need help on (besides the vague "I want to add some more features"), we have no clue where your at with implementing these "new features" and we...

Just create a new color using your values. I added the line of code into your try statement.

try
{
red = Integer.parseInt(redText.getText());
green =...

Try saving it to a .png instead of a .gif, that should (hopefully) work.

I would recommend the fifth edition of Java in a Nutshell (http://www.amazon.com/Java-Nutshell-5th-David-Flanagan/dp/0596007736/ref=sr_1_3?ie=UTF8&s=books&qid=1224622812&sr=1-3) more than the fourth.

Have you done any programs before this one? You need to declare main() as

public static void main(String[] args){

}

You never ended your Inventory class, it needs its corresponding...

What you could have done is marked the thread as solved, that way everyone would know it was solved and would not read the whole thing. Or, if you really wanted to be helpful you could have put the...

I would suggest reading this (http://java.sun.com/docs/books/tutorial/rmi/index.html) tutorial and maybe do a little more searching if you still don't understand it. If you don't understand it after...

The error is pretty self explanatory. You never gave the variables a value.

float num11, num22;That creates them but it does not initialize them with a value. If you give them a starting value,...

Show some effort by posting your code so we can see what you have done. Do what the question asks, learn how to write and read files by searching for tutorials. Google is your friend.

1 second Google search
http://www.javaworld.com/javaworld/jw-08-1996/jw-08-gc.html
http://java.sun.com/docs/books/jvms/first_edition/html/Overview.doc.html (Scroll down to find the paragraphs...

You need to instantiate choice1 before you add the string item. So change

choice1.add("10 oz");
choice1.add("16 oz");
Choice choice1 = new Choice();

to


Choice choice1 = new Choice();

And use this (http://www.simpsonstrivia.com.ar/simpsons-photos/wallpapers/homer-simpson-wallpaper-brain-1024.jpg).

If you had looked instead of being a lazy slug, you would have seen, at the top of this forum, a thread dedicated to starting Java Starting "Java" [Java tutorials / resources / faq]...

Your directions are exactly what my link told them to do. My link also told them how to do it without editing Environmental Variables and had two pictures ;)

Is this what you mean?

Image a;
public void init() {
a = getImage(getDocumentBase(), "a.jpg");
}
public void paint(Graphics g){
g.drawImage(a, x, y, width, height, this);
}

This thread is over three years old and you want someone who has not visited this site in three years to help you cheat. Do not bring back these old threads.