# Need help on passing values from one method to another

R .sourav nayak

Ranch Hand

Posts: 67

posted 10 years ago

hi,

i have twomethod in a java class named polynomail.I wanted to pass the value generated in constructPolynomial()method to displaySelf()method.

How do i do that.Below is the prigram i have written so far.. and even i wanted to findout the value of ax^2+ bx + c in a method named functionvalue().Thank you very much in adavnce

import java.util.Scanner;

class Polynomial {

private double quadratic_co;

private double linear_co;

private double constant;

public Polynomial(){

}

public void constructPolynomial(){

Scanner scan = new Scanner(System.in);

System.out.println("Enter the coefficient of the quadratic term:");

quadratic_co = scan.nextDouble();

System.out.println();

System.out.println("Enter the coefficient of the linear term:");

linear_co = scan.nextDouble();

System.out.println();

System.out.println("Enter the coefficient of the constant term:");

constant = scan.nextDouble();

}

/*public double functionValue(double x,double value, double constant){

value =( (x*x)*quadratic_co) + (x* linear_co)+ constant;

return value;

}*/

public void displaySelf(double quadratic_co, double linear_co, double constant ){

String s = quadratic_co + "x^2 + " + linear_co + "x + " + constant;

System.out.println("Entered Polynomial:f(x)= " + s);

}

}

public class Assi3

{

public static void main(String args[])

{

Polynomial p = new Polynomial();

p.constructPolynomial();

//p.functionValue(4.0);

p.displaySelf();

}

}

i have twomethod in a java class named polynomail.I wanted to pass the value generated in constructPolynomial()method to displaySelf()method.

How do i do that.Below is the prigram i have written so far.. and even i wanted to findout the value of ax^2+ bx + c in a method named functionvalue().Thank you very much in adavnce

import java.util.Scanner;

class Polynomial {

private double quadratic_co;

private double linear_co;

private double constant;

public Polynomial(){

}

public void constructPolynomial(){

Scanner scan = new Scanner(System.in);

System.out.println("Enter the coefficient of the quadratic term:");

quadratic_co = scan.nextDouble();

System.out.println();

System.out.println("Enter the coefficient of the linear term:");

linear_co = scan.nextDouble();

System.out.println();

System.out.println("Enter the coefficient of the constant term:");

constant = scan.nextDouble();

}

/*public double functionValue(double x,double value, double constant){

value =( (x*x)*quadratic_co) + (x* linear_co)+ constant;

return value;

}*/

public void displaySelf(double quadratic_co, double linear_co, double constant ){

String s = quadratic_co + "x^2 + " + linear_co + "x + " + constant;

System.out.println("Entered Polynomial:f(x)= " + s);

}

}

public class Assi3

{

public static void main(String args[])

{

Polynomial p = new Polynomial();

p.constructPolynomial();

//p.functionValue(4.0);

p.displaySelf();

}

}