Dynamic graphical user interface in Java

Question

I need to create something like this:

I usually do the GUI’s with the help of the IDE but in this case I can’t(I think), because I need the GUI to repeat an undefined number of times, depending on the user in question.

What’s the best way to do this? How do I deal with the problems of sizes as component positions? In this case I think I’ll just need to show values but how do I SETtext/GETtext of the values of the components?

Answer 1

The ideal is to create lists and place these components so you can easily access them later. And for the question of the layout I recommend using the emcapsulamento in boxes (Box) because it can create two vertical and one horizontal to keep the layout in an organized way. (Of course you will need adjustments to make the program "beautiful". But, just make some accounts and position the elements and you will not have error.

import javax.swing.Box;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTextField;
import java.util.ArrayList;
import java.util.List;

public class GuiApp1 {

    public static void main(String[] args) {

        new GuiApp1();
    }

    public GuiApp1()
    {
        JFrame guiFrame = new JFrame();
        guiFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        guiFrame.setTitle("Example GUI");
        guiFrame.setSize(300,250);
        guiFrame.setLocationRelativeTo(null);

        Box caixaVertical = Box.createVerticalBox();

        List<JLabel> labelLista = new ArrayList<JLabel>();
        List<JTextField> inputLista = new ArrayList<JTextField>();
        for(int i=0;i<10;i++){
            Box caixaHorizontal = Box.createHorizontalBox();
            JLabel label = new JLabel("Label" + i + "         ");
            JTextField input = new JTextField(10);
            labelLista.add(label);
            inputLista.add(input);
            caixaHorizontal.add(label);
            caixaHorizontal.add(input);
            caixaVertical.add(caixaHorizontal);
        }
        guiFrame.add(caixaVertical);
        guiFrame.setVisible(true);
    }

}

Note 1 : I didn’t care about the aesthetics of this program

Note 2: I particularly prefer to program much of the interface always at hand.

(but use an image editing program to preview the desired positioning i.e photoshop/paintshop etc)