{}
// Online Java Compiler
// Use this editor to write, compile and run your Java code online
import java.util.Scanner;
import java.util.StringTokenizer;
class PolynomialEvaluator {
public static void main(String[] args) {
Scanner keyboard = new Scanner(System.in);
System.out.println("What is your polynomial function in the form of f(x)=3x^3 -5x^2 +1x^4 +9x^6 +3.1x^1 +2?");
String polynomial = keyboard.nextLine();
System.out.println("What is your x value?");
double x = keyboard.nextDouble();
double polynomialEvaluator = 0;
double polynomialTotal = 0;
StringTokenizer st = new StringTokenizer(polynomial);
while (st.hasMoreTokens()){
double termValue = 0;
StringTokenizer term = new StringTokenizer(st.nextToken(),"x^");
int termTokens = term.countTokens();
if (termTokens == 2){
String supercool = term.nextToken();
Scanner scanner1 = new Scanner(supercool);
double coefficient = scanner1.nextDouble();
String supercool2 = term.nextToken();
Scanner scanner2 = new Scanner(supercool2);
double exponent = scanner2.nextDouble();
termValue = coefficient*Math.pow(x,exponent);
polynomialTotal = polynomialTotal+termValue;
}
else{
String supercool = term.nextToken();
Scanner scanner3 = new Scanner(supercool);
double constant = scanner3.nextDouble();
polynomialTotal = polynomialTotal+constant;
}
}
System.out.println("Your polynomial total is: " + polynomialTotal);
}
}