import java.awt.*;
import java.awt.event.*;

import javax.swing.*;


public class ab extends JFrame implements ActionListener {

    JLabel yEqu = new JLabel("Y= ");
    JTextField equation = new JTextField(20);
    JButton graphB =new JButton("Graph");

    public static void main(String[] args0){
        ab grapher = new ab();
    }
    public ab(){
        this.setLocationRelativeTo(null);
        this.setVisible(true);
        this.setTitle("Grapher");
        this.setSize(800,700);
        this.setDefaultCloseOperation(EXIT_ON_CLOSE);
        this.setLayout(new FlowLayout());
        this.add(yEqu);
        this.add(equation);
        this.add(graphB);
            graphB.addActionListener(this);
    }

    public ab(Graphics g){
        super.paintComponents(g);
        Graphics2D g2 = (Graphics2D)g;
        g2.fillRect(100,200,300,100);

    }

    public void actionPerformed(ActionEvent e) {
        if(e.getSource() == this.graphB){
            equation.setText("yay");

        }
    }
}