LinkedList help
Posted on
16th Feb 2014 07:03 pm by
admin
Ok so I just learned quickly about lists, so I have a not too hard project I think, but am having a few issues:
Here is the project. Create a lovely polynomial calculator, that takes the equation from the user, and a number for x.
Then solve it, but I have to use lists. As well as that I have to printout the equation with x at the end. And I will also have to have to add a method for finding the derivative of the equation.
Did you know?Explore Trending and Topic pages for more stories like this.
I'll worry about the printout and the derivative at the end, except I have a problem right now... I'll show my code first
Here is the lovely main
Code: import java.util.*;public class PolyDriver { public static void main(String[] args) { boolean isrunning = true; String userinput="no"; String no="no"; String yes="yes"; double whatisx=0; Scanner scan = new Scanner(System.in); System.out.println("What is X?"); whatisx =scan.nextDouble(); while(userinput.equals(no)) { System.out.println("Enter the first integer"); double d = scan.nextDouble(); System.out.println("Enter the exponent"); int e = scan.nextInt(); Poly m = new Poly(d, e, whatisx); System.out.println("Done?"); String j = scan.next(); if(j.equals(yes)) { System.exit(0); } } // System.out.println("Enter the number for x"); // Scanner scan = new Scanner(System.in); }}
Then here is the Poly class
Code: import java.util.*;/* * To change this template, choose Tools | Templates * and open the template in the editor. *//** * * @author JigglyWiggly-laptop */public class Poly { double integer=0; int exponent=0; double variable=0; double vrz=0; double whatisx=0; LinkedList linkedlist = new LinkedList(); public Poly(double d, int e, double x) { integer=d; exponent=e; whatisx=x; calculations(); // calculations(); } public double calculations() { double v = Math.pow(whatisx, exponent); double j = v*integer; linkedlist.add(j); printout(); return j; } public double printout() { for(int i=0; i
When I run it:
Code: run:What is X?2Enter the first integer2Enter the exponent2---18.0Done?noEnter the first integer2Enter the exponent2---18.0Done?noEnter the first integer2Enter the exponent2---18.0Done? Why does it not make the list bigger? And the numbers should be adding up. Any ideas?
(Also ignore the funky way of getting the user input, this is the way we were told to do so)
No comments posted yet
Your Answer:
Login to answer
318
44
Other forums
filesize problem
i use ubuntu 9.10 and i have mountet a folder from an windows
/mount/FOLDER
/mount/FOLDER/
php email checker
I am having alot of trouble finding info on how to do these email things. I need to do the following
setcookie and isset($_COOKIE(name)) seem very finnicky.
I'm currently playing around with a user system with login and registration. I'm trying to use cooki
.htpasswd Registration Form
Hi,
I wanted to make an htpasswd registration form.
I found this code on the internet but have
Calling variables
I want to call this to my website but it doesn't display what I want it to,
Code: <h5&
Sql and php order list script problems
Hi im having a few problems with trying to get the coding right on a orders list ive done (or trying
how to make database item unique
Hey guys,
is it possible to do this:
I have the database item $title being pulled for
how do i make new line after *
First check this page here. and you see my report. Im pulling form a mysql db. I want to beable to m
Shopping Cart
Can anyone direct me to a Simple, Basic structure of a shopping cart.
New to classes. I want to s
Keep newlines from textarea?..
I'm creating a simple encoding program, and what I want it to do is retain the newlines, as echoing