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

  1. #1
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    Default 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);
     
    }}
    Last edited by jps; August 9th, 2013 at 03:07 PM. Reason: code tags


  2. #2
    Crazy Cat Lady KevinWorkman's Avatar
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    Default Re: How can I get this code to display in my GUI? Specifically my TextArea?

    When posting code, please use the highlight tag to preserve formatting.

    What does this code do? What do you want it to do instead?
    Useful links: How to Ask Questions the Smart Way | Use Code Tags | Java Tutorials
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  3. #3
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    Default Re: How can I get this code to display in my GUI? Specifically my TextArea?

    Quote Originally Posted by KevinWorkman View Post
    When posting code, please use the highlight tag to preserve formatting.

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

    Right now, when the code runs, a button comes up. When you click the button, it displays the following in console:



    1) 10.62 * 4.0 = 42.48

    2) 14.89 * 8.5 = 126.56

    3) 13.21 * 6.0 = 79.26

    4) 16.55 * 7.35 = 121.64

    5) 18.62 * 9.0 = 167.58

    6) 9.47 * 15.3 = 144.89

    7) 6.58 * 3.0 = 19.74

    8) 18.32 * 5.4 = 98.93

    9) 12.15 * 2.9 = 35.24

    10) 3.98 * 4.8 = 19.1

    I need this output, to show up in my JTextArea in my GUI when the button is clicked.

  4. #4
    Super Moderator jps's Avatar
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    Default Re: How can I get this code to display in my GUI? Specifically my TextArea?

    Welcome jakhondi21
    Please use code tags when posting code, instructions can be found on the Announcements page
    See the documentation on JTextArea for the existing methods you can use.
    You may or may not want to add the text area to a JScrollPane, and a tutorial on their use can be found here

  5. #5
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    Default Re: How can I get this code to display in my GUI? Specifically my TextArea?

    My apologies, next time I post code I will definitely use the tags.

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