everything works except i need to add the polynomials numbers that a user writes

Question

everything works except i need to add the polynomials numbers that a user writes on the GUI in my addAction class?

and i dont know how and how to multiply them and get a total for both waysas the answer in my multiplAction class?

please reply fast asap.

import java.awt.*;

//import libraries import java.awt.event.*;

import javax.swing.*;

import java.util.LinkedList;

import java.util.StringTokenizer;

public class PolynomialProgram extends JFrame{

private JTextField JTextField("Enter one polynomial value" , 30);

private JTextField nextPolynomialField = new JTextField("Enter last polynomial value" , 30);

private JButton multiplyonePolynomialButton = new JButton("Multiply by"); private JButton multiplynextPolynomialButton = new JButton("Multiply by");

private JTextField JTextField(5); //4 textfield private JTextField nextPolynomialMultiplyField = new JTextField(5);

private JButton addDigitButton = new JButton("Add Polynomials"); //5 buttons private JButton closeButton = new JButton("CLOSE");

private JButton helpButton = new JButton("HELP");

public static void main(){ PolynomialProgram digit = new PolynomialProgram(); digit.setDefaultCloseOperation(EXIT_ON_CLOSE);

digit.setTitle("Polynomials testing");

digit.buildGUI();

digit.setVisible(true);

digit.setSize(440,320); }

public void buildGUI(){

JPanel onePolyPanel, nextPolyPanel, controlPanel;

Container window = getContentPane();

window.setLayout(new BoxLayout(window,BoxLayout.Y_AXIS)); multiplyonePolynomialButton.addActionListener(new MultiplyAction()); multiplynextPolynomialButton.addActionListener(new MultiplyAction()); addDigitButton.addActionListener(new AddDigitAction()); //create a separate class to use this helpButton.addActionListener(new HelpAction());

closeButton.addActionListener(new ExitAction());

window.add(Box.createRigidArea(new Dimension(0,30)));

onePolyPanel = new JPanel();

onePolyPanel.setLayout(new BoxLayout(onePolyPanel,BoxLayout.X_AXIS)); //box shape layout onePolyPanel.add(Box.createRigidArea(new Dimension(10,0)));

onePolynomialField.setMaximumSize(new Dimension(200,20));

onePolyPanel.add(onePolynomialField); //add first field to window pane onePolyPanel.add(Box.createRigidArea(new Dimension(20,0))); onePolyPanel.add(multiplyonePolynomialButton); //add button to window onePolynomialMultiplyField.setMaximumSize(new Dimension(60,20)); //mutiply field for first value onePolyPanel.add(Box.createRigidArea(new Dimension(5,0)));

onePolyPanel.add(onePolynomialMultiplyField);

onePolyPanel.add(Box.createHorizontalGlue());

window.add(onePolyPanel);

window.add(Box.createRigidArea(new Dimension(0,10)));

nextPolyPanel = new JPanel();

nextPolyPanel.setLayout(new BoxLayout(nextPolyPanel,BoxLayout.X_AXIS)); nextPolyPanel.add(Box.createRigidArea(new Dimension(10,0)));

nextPolynomialField.setMaximumSize(new Dimension(200,20));

nextPolyPanel.add(nextPolynomialField); //add second field to the window nextPolyPanel.add(Box.createRigidArea(new Dimension(20,0))); nextPolyPanel.add(multiplynextPolynomialButton);

nextPolynomialMultiplyField.setMaximumSize(new Dimension(60,20)); //multiply field for second value nextPolyPanel.add(Box.createRigidArea(new Dimension(5,0)));

nextPolyPanel.add(nextPolynomialMultiplyField);

nextPolyPanel.add(Box.createHorizontalGlue());

window.add(nextPolyPanel);

window.add(Box.createRigidArea(new Dimension(0,40)));

controlPanel = new JPanel();

controlPanel.setLayout(new BoxLayout(controlPanel,BoxLayout.X_AXIS)); controlPanel.add(Box.createRigidArea(new Dimension(10,0)));

controlPanel.add(addDigitButton); //add both polynomials together controlPanel.add(Box.createHorizontalGlue());

controlPanel.add(Box.createRigidArea(new Dimension(60,0)));

controlPanel.add(helpButton);

controlPanel.add(Box.createRigidArea(new Dimension(15,0)));

controlPanel.add(closeButton);

controlPanel.add(Box.createRigidArea(new Dimension(10,0)));

window.add(controlPanel);

window.add(Box.createRigidArea(new Dimension(0,40)));

window.add(Box.createVerticalGlue()); }

private class MultiplyAction implements ActionListener

{ public void actionPerformed(ActionEvent event)

{ float coefficient; int exponent; // Term term; // Polynomial poly1, poly2; String s = new String(), token; if (event.getSource().equals(multiplyonePolynomialButton))

{ //poly1 = new Polynomial(); s = onePolynomialField.getText();

} else if (event.getSource().equals(multiplynextPolynomialButton))

{ //poly2 = new Polynomial(); s = nextPolynomialField.getText(); }

StringTokenizer st = new StringTokenizer(s);

try { // get polynomial

while (st.hasMoreTokens())

{

token = st.nextToken();

coefficient = Float.parseFloat(token);

if (!st.hasMoreTokens()) {

exponent = 2;

} else if (!(st.nextToken().equals("x"))) {

throw new Exception();

} else {

token = st.nextToken(" +");

exponent = Integer.parseInt(token);

}

JOptionPane.showMessageDialog(null, "Term = " + coefficient + "x" + exponent);

/* * term = new Term(coefficient,exponent);

*if (event.getSource().equals(multiplyFirstButton)) { *

poly1.add(term); * } *

else if (event.getSource().equals(multiplySecondButton)) { *

poly2.add(term); * } * */ } /* get the multiplication value from appropriat field, multiply & then display new polynomial

* if (event.getSource().equals(multiplyFirstButton)) {

* result = poly1.multiply(value); * result.display(); * } *

else if (event.getSource().equals(multiplySecondButton)) { *

result = poly2.multipoly(value); * result.display(); * } */ } catch (Exception e) { JOptionPane.showMessageDialog(null,"Invalid Polynomial","Error",JOptionPane.ERROR_MESSAGE); } } }

private class AddDigitAction implements ActionListener{

public void actionPerformed(ActionEvent event)

{ } }

private class HelpAction implements ActionListener {

public void actionPerformed(ActionEvent event){

String s = new String (); s = "Enter Polyonomials as: 13 x 7 + 4.5 x 2 + 65.2 " + "There must be a space between all entries "; JOptionPane.showMessageDialog(null, s, "Polynomial Instructions", JOptionPane.INFORMATION_MESSAGE); } }

private class ExitAction implements ActionListener { public void actionPerformed(ActionEvent event) { System.exit(0); } } }

Explanation / Answer

I am working on this ! Question is clear here !! :)

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