Resizing FlowLayout Panels

Question

I am trying to create JPanelone that uses FlowLayout. This panel is placed inside containerusing BorderLayout. This one is containerthen added to the map using CardLayout. I would like the panel using FlowLayoutto be a small drawer in the lower left corner of the panel BorderLayout. How can I do it? I used settingsPanel.setPreferredSize(new Dimension(10, 425));, but the width still covers the entire panel, no matter what size I set, although the height changes. How do I change the width?

The code:

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

public class Main {
    //Settings Panel variables
    JLabel settingsTitle = new JLabel("Settings");

    public Main()
    {
        JPanel mainCard = new JPanel(new BorderLayout(8,8));
        JPanel settingsPanel = new JPanel(new FlowLayout(FlowLayout.CENTER));
        settingsTitle.setFont(new Font("TimesRoman", Font.PLAIN, 35));
        settingsPanel.add(settingsTitle);

        final CardLayout layout = new CardLayout();
        final JPanel cards = new JPanel(layout);
        cards.add(mainCard, "2");

        mainCard.add(settingsPanel, BorderLayout.SOUTH);

        settingsPanel.setPreferredSize(new Dimension(10, 425));
        settingsPanel.setBorder(BorderFactory.createLineBorder(Color.black));

        layout.show(cards, "1");

        JFrame window = new JFrame("Test");
        window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        window.getContentPane().add(cards);
        window.setSize(1280, 720);
        window.setLocationRelativeTo(null);
        window.setResizable(false);
        window.setVisible(true);

    }

    public static void main(String[] args)
    {

        SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                new Main();
            }
        });

    }
}

Example:

Answer 1

, BorderLayout GridBagLayout. GridBagLayout , ( ), . , : :

• ( , ) (gridwidth/gridheight)
• : , , ... ()
• /, , , / . (weightx, weighty)
• . ()

. , BorderLayout , . fill = NONE anchor = LAST_LINE_START, .

, . , . 1x1. : , , . , , .

    import java.awt.BorderLayout;
    import java.awt.CardLayout;
    import java.awt.Color;
    import java.awt.Dimension;
    import java.awt.FlowLayout;
    import java.awt.Font;
    import java.awt.GridBagConstraints;
    import java.awt.GridBagLayout;

    import javax.swing.BorderFactory;
    import javax.swing.BoxLayout;
    import javax.swing.JFrame;
    import javax.swing.JLabel;
    import javax.swing.JPanel;
    import javax.swing.SwingUtilities;    
    public class Main {
    //Settings Panel variables
    JLabel settingsTitle = new JLabel("Settings");

    public Main()
    {
        JPanel mainCard = new JPanel(new GridBagLayout());
        JPanel settingsPanel = new JPanel(new FlowLayout(FlowLayout.CENTER));
        settingsTitle.setFont(new Font("TimesRoman", Font.PLAIN, 35));
        settingsPanel.add(settingsTitle);

        final CardLayout layout = new CardLayout();
        final JPanel cards = new JPanel(layout);
        cards.add(mainCard, "2");

        GridBagConstraints c = new GridBagConstraints();
        c.gridx = 0;
        c.gridy = 0;
        c.weightx = 1.0;
        c.weighty = 1.0;
        c.anchor = GridBagConstraints.LAST_LINE_START;
        c.fill = GridBagConstraints.NONE; //uneeded line because it the default value, but it has to be NONE

        mainCard.add(settingsPanel, c);

       // settingsPanel.setPreferredSize(new Dimension(300, 425)); //the components inside settingsPanel will set its side
        settingsPanel.setBorder(BorderFactory.createLineBorder(Color.black));

        layout.show(cards, "1");

        JFrame window = new JFrame("Test");
        window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        window.getContentPane().add(cards);
        window.setSize(1280, 720); ///replace with window.pack()
        window.setLocationRelativeTo(null);
        window.setResizable(false);
        window.setVisible(true);

    }

    public static void main(String[] args)
    {

        SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                new Main();
            }
        });

    }
}

Answer 2

: settingsPanel.setPreferredSize(new Dimension(10, 425)) .

, , settingsPanel SOUTH:

 JPanel wrapPanel = new JPanel(new FlowLayout(FlowLayout.LEFT));
 wrapPanel.add(settingsPanel);

 JPanel mainCard = new JPanel(new BorderLayout(8,8));
 mainCard.add(wrapPanel, BorderLayout.SOUTH); // add wrapPanel here instead of settingsPanel

FlowLayout, , :

, ,

, 2: . , ?