For some reason, I can't get java to run my program. Whenever I try I get the message
"Error: Could not find or load main class Project"
In Command Prompt I type cd Documents since the file is in my Documents folder, type 
javac Project.java 
then
java Project
to try and run it but I get the above error message.
import java.util.Scanner;
import java.text.DecimalFormat; 
public class Project
{
    public static void main(String[] args)
    {
        Code and stuff
    }
}
There's a fair bit of code that I left out but I think this is the part that's messed up. Let me know if you need to see the rest of the code and I'll edit this.