Alright, that is helpful information. I think that is all I need to know for my purposes, thanks for the help.

So I am writing a voice activated recording program, and one of the things I would like it to do is plot the current and past volume level on a JPanel.

Write now I am simply reading one byte from...

Alright, the combination of those posts resulted in a pretty comprehensive answer. It even answered another question I had on the effects of instantiating within a loop opposed to before it. So,...

So, readability aside, it is more efficient to do a fairly simple calculation two or three times than to store the result?

The code in question is going to be called every time the paintComponent...

When is it more efficient to store the value of a calculation than perform that calculation 2 or more times?

I have always been under the impression that performing a simple arithmetic calculation...

If you got errors when compiling, then I suspect that you did not declare s as a static variable.

You may already be aware of this, but it seems you would have to divide length by two otherwise...

Hmmm, my guess would be that you either pass s as another parameter or instantiate s outside of the method. If you choose the latter you will have to reset s once length = 0.
That's my guess...

Thanks for the reply cudmore, I should be able to find the information I need with the links you provided.

Jwenting, after searching through the index of the current book I'm using: "Fundamentals...

A friend of mine and I are taking an external computer science test. While studying the review it has become apparent that some of the syntax presented is quite unfamiliar.
Here are a few examples:...

Thanks; I should be able to find any other information with what you have given me.

As for learning swing, try this page:
http://java.sun.com/docs/books/tutorial/uiswing/TOC.html

I was going through the questions in my study guide for computer science, and I noticed a few blocks of code that contained syntax that I had never used before.

My first question is on the ^...

Thanks, I was not aware of that.
In the end what I ended up doing was compiling it through the command prompt. Then I changed the current directory I was viewing to that of the java file. Then using...

I've never actually ran a CLI based program outside of bluej.
And after exporting one of my programs to a jar, I noticed I was not able to get any results when double clicking the jar.
So, I'm...

I think you may be best off using KeyboardReader to take input.
And you definitely have to use Ancient Dragon's suggestion for the bubble sort.

Yeah the File Class should have all the methods that you would need.
http://java.sun.com/j2se/1.3/docs/api/java/io/File.html

Let me focus the question.
When updating a JList would this code do the trick:


public void updateList(JList list, ArrayList objs)
{
DefaultListModel listModel =...

So this is my first attempt at a GUI in swing, and so far things seem to have been going somewhat smoothly.
However I am un-able to update a JList named objectsL.
I imagine this is because I have...