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
Retreiving objects from Sessions
Hi all,
I am getting really frustrated with storing and retreiving objects from a session. Bu
Need help-Error istream header declaration
Hi Everyone ,
I am having issue with istream declaration. I am new to C programming.
can a
Results from Db outputted twice
Hey guys.. for come reason my data is outputted twise shown in the image below and i cant figure out
Problems with returning true or false in eval()'d code
Hi guys,
Would appreciate some help with a problem when running eval() on a function that sho
Help! refer to a friend script with captcha code
Hi guys, I am posting on here in desperate need for some help with an ongoing search I have been doi
How to find OS bit version
How can I tell the person browsing my site is running 32, or 64 bit operating system?
Number Format
Hi All,
I have number '000000000050085' I want to format it to 500.85 Can any one give me
Strange HTML Tag?
I recently noticed some odd HTML appear in some of the websites I host. Not all of them are run on a
Retrieving innerHTML with cURL?
Hey all (sorry I know I'm a leecher, but I soon won't be. This is my first PHP project, but not my l
Using Microsoft Exchange Server with PHP
Hi,
I wanted to know if its possible to fetch email attachments from the exchange server usin