Thread: How can I get this code to display in my GUI? Specifically my TextArea?

import java.util.ArrayList;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
 
 
 
public class ThreeArrayLists extends JFrame {
 
 
 
 
private static final long serialVersionUID = 1L;
 
 
 
public ThreeArrayLists(){
	super("ThreeArrayLists");
	setLayout(new FlowLayout());
	setSize(350,350);
	JButton button = new JButton("Press");
	JLabel label1 = new JLabel("Three Array Lists");
	JTextArea textArea = new JTextArea(250,250);
	getContentPane();
	add(label1);
	add(button);
	add(textArea);
 
	buttonHandler bHandle = new buttonHandler();
	button.addActionListener(bHandle);
 
}
	class buttonHandler implements ActionListener{
		public void actionPerformed(ActionEvent e)
		{
			ArrayList<Double> priceList = new ArrayList<Double>();
			ArrayList<Double> quantityList = new ArrayList<Double>();
			ArrayList<Double> amountList = new ArrayList<Double>();
 
			priceList.add(new Double(10.62));
			priceList.add(new Double(14.89));
			priceList.add(new Double(13.21));
			priceList.add(new Double(16.55));
			priceList.add(new Double(18.62));
			priceList.add(new Double(9.47));
			priceList.add(new Double(6.58));
			priceList.add(new Double(18.32));
			priceList.add(new Double(12.15));
			priceList.add(new Double(3.98));
 
			quantityList.add(new Double(4.0));
			quantityList.add(new Double(8.5));
			quantityList.add(new Double(6.0));
			quantityList.add(new Double(7.35));
			quantityList.add(new Double(9.0));
			quantityList.add(new Double(15.3));
			quantityList.add(new Double(3));
			quantityList.add(new Double(5.4));
			quantityList.add(new Double(2.9));
			quantityList.add(new Double(4.8));
			{
				for (int i = 0; i < 10; i++) {
					amountList.add((Double.valueOf(priceList.get(i).toString())) * (Double.valueOf(quantityList.get(i).toString())));
 
					System.out.printf("%d) %.2f * %.2f = %.2f \n",i+1, Double.valueOf(priceList.get(i).toString()), Double.valueOf(quantityList.get(i).toString()), Double.valueOf(amountList.get(i).toString()));
 
				}
					}
			}
			}
 
 
 
 
 
 
public static void main(String[] args){
	ThreeArrayLists newArray = new ThreeArrayLists();
	newArray.setVisible(true);
 
}}

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What does this code do? What do you want it to do instead?