GUI Help Java Program

I don't know what to use, a JFileChooser, or a JTextArea?



It's suppose to read in a social security (sample) file, if it contains anything other than the 9 digits, it will show the exception. Line by line is read into a GUI via a text file.

I only got it to work to open an empty GUI with the appropriate heading.

Code:

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import javax.swing.*;
import java.awt.*;
import java.io.*;

public class GUI extends JPanel implements ActionListener{
        protected JTextField textField;
        protected JTextArea textArea;
        private final static String newline = "\n";

        JFrame myFrame;

        //Need to display an error message for the line of error in txt
        //file in a text box.
        //JFileChooser fc = new JFileChooser();

        textField = new JTextField(20);
        textField.addActionListener(this);
        textArea = new JTextArea(10, 20);
        textArea.setEditable(false);
        JScrollPane scrollPane = new JScrollPane(textArea);
       

        //Main
        public static void main(String[]args){
                GUI gui = new GUI();
        }

        GUI(){
                myFrame = new JFrame();
                myFrame.setSize(500,500);
                myFrame.setLocation(250,250);
                myFrame.setTitle("Social Security Numbers");
                myFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                myFrame.setVisible(true);
        }
}

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Quote:

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Originally Posted by coder752

I don't know what to use, a JFileChooser, or a JTextArea?

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From the Javadocs: "A JFileChooser provides a simple mechanism for the user to choose a file". It gives a view of the file system and allows you to make a file or directory selection.

Is that what you want to do?

"A JTextArea is a multi-line area that displays plain text" and allows editing of that text.

Is that what you want to do?

They are quite different functions, you must have some idea what you want to do...? If not, you need to go back to the drawing board and decide what it is you are trying to achieve and what you need to do it.

If you cannot describe what you are doing as a process, you don't know what you're doing...
W. E. Deming