Re: I really need help with this so if anyone can help me out that
would be really great of you.
adityagadda...@gmail.com wrote:
Part II
To make a profit a local store marks up the prices of its items by
25%. Write a Java program that declares the following variables:
1. a double variable named percent_markedup
2. a double variable named original_price
3. a double variable named sales_tax_rate
In your program be sure to assign a value to each of the variables 1-3
above. Use initialization for 1 and 2 and for 3.
Using the information from above, the program should then output:
1. the original price of the item
2. the marked-up percentage of the item (original price times percent
of markup)
3. the store's selling price of the item
4. the sales tax rate
5. the sales tax
6. the final price of the item (the final price of the item is the
selling price plus the sales tax)
can u send me an email or using this to communicate.
Please do not use textspeak in Usenet posts.
A couple of points about your assignment that you will need to know if you
ever use Java outside of school:
- by long-standing and nearly rigid convention, Java variables are spelled
without underscores and with mixed case, capitalizing each word part except
the first, hence "percentMarkedUp".
- doubles work fine as currency values for academic work, but not so much in
the real world. The issues are somewhat complex, so we stick with doubles
until we've learned some more of the basics.
Let's review your assignment piece by piece:
I'll give you this part. A "Java program" is a class with a properly-defined
main() method.
package programming.oneohone;
public class RetailModel
{
public void main( String [] args )
{
}
}
that declares the following variables
There are two places you could declare variables so far, within the class
itself as instance or class variables, or within the main() method. The
main() method is simpler, so start there.
1. a double variable named percent_markedup
2. a double variable named original_price
3. a double variable named sales_tax_rate
Do you know how to declare variables? I'll give you one, focusing in on just
the main() method and not the rest of the class.
public void main( String [] args )
{
double percent_markedup;
}
It's the same for the others.
In your program be sure to assign a value to each of the variables 1-3
above. Use initialization for 1 and 2 and for 3.
Well, the declaration of 1. that I showed you doesn't assign a value, because
it doesn't have an initialization clause.
Yet.
The tutorial gives a hint near the top of the page about initialization, in
case you forget the course information:
<http://java.sun.com/docs/books/tutorial/java/nutsandbolts/variables.html>
So go ahead and modify the declarations you just wrote and add the
initializations.
Solve one itty-bitty problem at a time, and make sure your program is correct
at each stage. Only then add in the next piece of the puzzle, one itty-bitty
problem at a time.
This is beginning to sound a lot like Patricia Shanahan's advice, isn't it?
You should go back to her link and read it again, very carefully.
Quiz: Where (in what file) do you store the source code for your RetailModel
program?
General advice: Read the rest of the tutorial, not just the one page I linked
you to.
--
Lew