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
Running a cron job through PHP/Apache?!
Hello all,
I have a PHP script which makes a cron file from user input. When i try to run the cro
PHP - HTTP Digest Authentication - Understanding Code Help
Hi Everyone,
This is my first time on your website and please excuse if I am asking silly que
Using Windows message as a Handle
Hi,
I am writing one of my first multithreaded programs.
In one of the thread,
line breaks in between fetched file names
Hi,
I have this code:
Code: <?php
if($dir = opendir('files')){
while (($f
writing a screen scraper
Hello,
I'm writing a screen scraper application and want to be able to get absolute addresses
Lack of simpleXML Documentation
What is up with this.
Look at: http://www.php.net/manual/en/function.simplexml-load-file.php<
need to add "sizes" to shopping cart
Hey guys, I am trying to figure out a way to add a "size" selector on to this bit of code.
Date help - fetch dates for Mondays between xxx and yyy?
Does anyone know the best way to do this? I have two dates, say:
2010-01-26 and 2010-05-30
Checkbox info wont include in Mailto
Hey, im new to php.
Basically I have made a form to request which type of job(s) are needed, whic
Convert Binary String to Decimal
Trying to Get:
Decimal: 305419896
Out of:
Binary String: xV4