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
whats wrong with my code please help!!!
this is the error
Warning: mysql_close(): supplied argument is not a valid MySQL-Link res
Storing/displaying image urls in a database?
Hi
Basically I have the following scenario:
User chooses picture from list. Picture info is ad
PHP5/Zend 2.0 - Resources
PHP5 Snapshots
http://snaps.php.net/
ZEND 2.0 Feature Overview and Design (PDF File
Displaying Column Names
I have a question regarding the ability to show the column names from my table/query.
What I'm lo
Not capturing all the information we require in the form.......
Hi Guys,
I was wondering if you would share some more of your knowledge today, I'm hoping it
Query failed issue with php script but works fine in mssql manager!
hi i have the script below which copies data from one table to another but will only insert new data
limitations on array_unique()
Does any one know what/how imitations are applied to array_unique? I have an issue where no matter h
writing a screen scraper
Hello,
I'm writing a screen scraper application and want to be able to get absolute addresses
noob question
i traying to do a php form with auto replay for both(me and the user who send me a mail),
a u
Scheduler problems related to execution of a single BLT by many schedules
Hello all,
We are running several MII instances in a distibuted architecture using a sing