JTextArea中的选项卡输出行为

Question

I try to be as punctilious as possible in researching before I ask a question, especially one so simple, so bear with me.

I have a String that's tab delimited, and when I output it to a JTextArea in Java, I get behavior that looks like this:

FirstName   LastName   PhoneNumber         BirthDate

Linewrap is turned off with horizontal scrolling enabled. After toiling over the documentation and SA, I'm missing something obvious as to why it's exhibiting this behavior.

Answer 1

As @kleopatra comments, this is not unexpected. As alternatives, consider JTable or How to Use HTML in Swing Components .

Addendum: I previously overlooked setTabSize() .

import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextArea;

/** @see https://stackoverflow.com/questions/7509429 */
public class TextAreaTabs extends JPanel {

    public TextAreaTabs() {
        JTextArea jta = new JTextArea("FirstName\tLastName\tPhoneNumber\tBirthDate");
        jta.setTabSize(10);
        this.add(jta);
    }

    private void display() {
        JFrame f = new JFrame("TextAreaTabs");
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.add(this);
        f.pack();
        f.setLocationRelativeTo(null);
        f.setVisible(true);
    }

    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {

            @Override
            public void run() {
                new TextAreaTabs().display();
            }
        });
    }
}