Main.java Source code

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Here is the source code for Main.java

Source

import java.awt.Dimension;
import java.awt.GridBagLayout;

import javax.swing.BorderFactory;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class Main {
    public static void main(String[] args) {
        JFrame frame = new JFrame();
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setContentPane(new MyContentPane());
        frame.pack();
        frame.setLocationByPlatform(true);
        frame.setVisible(true);
    }
}

class MyContentPane extends JPanel {
    int PREF_W = 700;
    int PREF_H = 550;

    public MyContentPane() {
        setLayout(new GridBagLayout());
        add(new JPanelOfInterest());
    }

    @Override
    public Dimension getPreferredSize() {
        return new Dimension(PREF_W, PREF_H);
    }
}

class JPanelOfInterest extends JPanel {
    int PREF_W = 400;
    int PREF_H = PREF_W;

    public JPanelOfInterest() {
        setBorder(BorderFactory.createTitledBorder("Title"));
    }

    @Override
    public Dimension getPreferredSize() {
        return new Dimension(PREF_W, PREF_H);
    }
}