应该使用哪种布局？

Question

I'm kind of new to the whole "how to arrange your components" thing in JAVA and I couldn't figure out how to realise the following JFrame (I can't post images so I just put the link)

I tried to be as precise as possible about what I already did. I would like your advice about how to arrange the green part. Thanks!

EDIT: as some people rightfully said, I didn't put the code of what I did. Here it is:

public Frame(){
        this.setTitle("Small application");
        this.setSize(445, 500);
        this.setLocationRelativeTo(null);
        this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
        this.setVisible(true);
        this.setResizable(false);

        JPanel container = new JPanel();
        container.setLayout(new BorderLayout());

        //Title
        JLabel title = new JLabel("Welcome to this application");
        title.setHorizontalAlignment(JLabel.CENTER);
        title.setPreferredSize(new Dimension(200,50));
        title.setFont(new Font("Courrier",Font.BOLD,20));
        container.add(title, BorderLayout.NORTH);

        //Center part
        JPanel centerPart = new JPanel();
        JLabel cell1 = new JLabel("Enter all measurements:");
        cell1.setPreferredSize(new Dimension(150,20));
        JLabel cell2 = new JLabel("Please, select the files...");
        cell2.setPreferredSize(new Dimension(150,20));
        cell2.setBackground(Color.white);
        cell2.setBorder(BorderFactory.createLineBorder(Color.black));
        cell2.setOpaque(true);
        JButton cell3 = new JButton("Browse");
        cell3.setPreferredSize(new Dimension(100,20));
        centerPart.add(cell1);
        centerPart.add(cell2);
        centerPart.add(cell3);
        container.add(centerPart, BorderLayout.CENTER);

        /*
         * I need your help here :)
         * I can't figure out how to put the image and the text next to it
         */ 

        //Bottom part
        JPanel bottom = new JPanel();
        JButton graph = new JButton("Graph");
        JButton exit = new JButton("Exit");
        bottom.add(graph);
        bottom.add(exit);
        container.add(bottom, BorderLayout.SOUTH);

        this.setContentPane(container);
    }

Answer 1

For most practical cases, you use multiple, nested containers , with a LayoutManager suited to the layout within each container.

Each LayoutManager does one specific job, in practice you often want differnt regions of a UI layouted in different ways. So for each region use a separate Container (eg JPanel) and set a LayoutManager that suits your layout requirements.

The big hurdle for beginners seems to be to get the point that LayoutManagers can (and often must) be used with nested containers.

Answer 2

Try using a JPanel

• Create the JPanel
• Place your JPanel into your JFrame
• Position the labels, button, textfield onto the newly created JPanel.

It should do the trick. and it is pretty basic. You should be able to do the code on your own!