CODEWITHSUNDEEP
javaswinglayout-managerjtextarea
117Halo
117Halo

Reputation: 3

How do I put a JTextArea along side another JTextArea?

I'm trying to put one JTextArea next to another JTextArea in a GUI

I am writing a GUI for a database and wanted to put the data from each column in a different JTextArea. This will make my GUI look a lot better and make it easier to view the data. I have already tried adding the JTextAreas to a JPanel, but that doesn't seem to be working.

This is what I've tried so far:

public class GUIDisplayBooks extends JFrame{

    JPanel panel = new JPanel();
    JTextArea textAreaIsbn = new JTextArea();
    JTextArea textAreaTitle = new JTextArea();
    JTextArea textAreaSurname = new JTextArea();
    JTextArea textAreaForename = new JTextArea();
    JTextArea textAreaCategory = new JTextArea();
    JScrollPane scrollPane = new JScrollPane(panel);

    GUIDisplayBooks(ArrayList<Book> books)
    {
        this.add(panel);
        this.setSize(600,200);
        this.setLocationRelativeTo(null);
        this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);

    for(Book book : books){            
        textAreaIsbn.append(book.getIsbn() + "\n");
        textAreaTitle.append(book.getTitle() + "\n");
        textAreaSurname.append(book.getSurname() + "\n");
        textAreaForename.append(book.getForename() + "\n");
        textAreaCategory.append(book.getCategory() + "\n");
    }
        panel.add(textAreaIsbn);
        panel.add(textAreaTitle);
        panel.add(textAreaSurname);
        panel.add(textAreaForename);
        panel.add(textAreaCategory);
        add(scrollPane);

    }

}

I keep getting a blank GUI window. Maybe it's something really obvious, any help appriciated

Upvotes: 0

Views: 176

Answers (2)

Frakcool
Frakcool

Reputation: 11153

Swing components can only have a single parent:

JScrollPane scrollPane = new JScrollPane(panel);

I basically the same of this:

JScrollPane scrollPane = new JScrollPane();
scrollPane.setViewportView(panel);

Then you're adding that same panel to your JFrame:

this.add(panel);

Which removes it from the JScrollPane and then you add the empty JScrollPane to the JFrame:

add(scrollPane);

So, removing this line, should make your program to work:

this.add(panel);

Upvotes: 1

Luca Negrini
Luca Negrini

Reputation: 490

You could use a layout. Various implementations exists, you can take a first look here.

A FlowLayout with Horizontal orientation should do it.

Upvotes: 0

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