java - 将多组JLabel和JTextBox添加到Java中的同一行

我正在构建一个方程式求解器，允许用户输入方程式系统，然后获得答案。因此，我需要构建一个允许用户输入方程组的GUI。我决定从头开始。这是我的代码：

private JFrame frame;
private JTextField[][] text;
private JLabel label;
private JLabel equalLabel;
private JLabel plusLabel;
private JTextField answerText;

private void displayGetEquations(int total)
{
frame = new JFrame("Enter Equations");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    equalLabel = new JLabel();
    equalLabel.setText(" = ");
    plusLabel = new JLabel();
    plusLabel.setText(" + ");
    answerText = new JTextField();
    answerText.setColumns(2);
    frame.setLayout(new GridLayout(0,10));
    text = new JTextField[3][3];
    for(int i = 0 ; i < 3 ; i++)
    {
 panel = new JPanel();
            panel.setLayout(new FlowLayout());
        for(int j = 0 ; j < 3 ; j++)
        {
            text[i][j] = new JTextField();
            text[i][j].setColumns(2);
            label = new JLabel();
            Font font = label.getFont();
            Font boldFont = new Font(font.getFontName(), Font.BOLD, font.getSize());
            label.setFont(boldFont);
            label.setText("x");
            panel.add(text[i][j]);
            panel.add(label);
            panel.add(plusLabel);
        }
        panel.add(equalLabel);
        panel.add(answerText);
        frame.add(panel);
        frame.revalidate();
        frame.repaint();

    }
    frame.pack();
    frame.setVisible(true);
}

这是我运行上面的代码时得到的：



但是我没有得到想要的输出，我希望是这样的：


这是使用NetBeans的拖放功能实现的。我在做什么错？我想要的甚至有可能吗？
任何帮助，将不胜感激。
谢谢 ！

（这是使用NetBeans的拖放功能完成的）

最佳答案

您的代码有点混乱，这里发布的代码不是MCVE，因为它缺少main方法和导入以及变量panel，并且给我的输出不同于您的输出。发表：



从示例输出图像中，我做了两种方法，一种使用多个JPanel和一个FlowLayout，另一种使用BoxLayout，另一个使用一个JPanel和GridLayout。另一种方法可能是使用GridBagLayout



我使用了x，y和z变量名，因为我认为您正在使用方程式求解程序或类似的程序。

这是产生上述输出的代码：

import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.GridLayout;

import javax.swing.BorderFactory;
import javax.swing.BoxLayout;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;

public class MultipleComponentsInRow {

    public static final int ROWS = 3;
    public static final int COLS = 4;

    private JFrame frame;
    private JPanel flowLayoutPanel;
    private JPanel gridLayoutPanel;

    private JTextField[][] flowFields;
    private JTextField[][] gridFields;

    private void createAndShowGui() {
        frame = new JFrame("Multiple Components In Row");

        flowFields = new JTextField[ROWS][COLS];
        gridFields = new JTextField[ROWS][COLS];

        flowLayoutPanel = new JPanel();
        flowLayoutPanel.setLayout(new BoxLayout(flowLayoutPanel, BoxLayout.PAGE_AXIS));

        gridLayoutPanel = new JPanel();
        gridLayoutPanel.setLayout(new GridLayout(ROWS, 7));

        for (int i = 0; i < ROWS; i++) {
            for (int j = 0; j < COLS; j++) {
                flowFields[i][j] = new JTextField(2);
                gridFields[i][j] = new JTextField(2);
            }
        }

        //FlowLayout approach
        for (int i = 0; i < ROWS; i++) {
            JPanel pane = new JPanel();
            pane.setLayout(new FlowLayout());
            for (int j = 0; j < COLS; j++) {
                pane.add(flowFields[i][j]);
                switch (j) {
                    case 0:
                        pane.add(new JLabel(" x + "));
                        break;
                    case 1:
                        pane.add(new JLabel(" y + "));
                        break;
                    case 2:
                        pane.add(new JLabel(" z = "));
                        break;
                    default:
                        break;
                }
            }
            flowLayoutPanel.add(pane);
        }

        //GridLayout approach
        for (int i = 0; i < ROWS; i++) {
            for (int j = 0; j < COLS; j++) {
                gridLayoutPanel.add(gridFields[i][j]);
                switch (j) {
                    case 0:
                        gridLayoutPanel.add(new JLabel(" x + "));
                        break;
                    case 1:
                        gridLayoutPanel.add(new JLabel(" y + "));
                        break;
                    case 2:
                        gridLayoutPanel.add(new JLabel(" z = "));
                        break;
                    default:
                        break;
                }
            }
        }

        frame.setLayout(new GridLayout(1, 2, 5, 5));

        flowLayoutPanel.setBorder(BorderFactory.createTitledBorder(BorderFactory.createLineBorder(Color.BLACK), "Flow Layout"));
        gridLayoutPanel.setBorder(BorderFactory.createTitledBorder(BorderFactory.createLineBorder(Color.RED), "Grid Layout"));

        frame.add(flowLayoutPanel);
        frame.add(gridLayoutPanel);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.pack();
        frame.setVisible(true);
    }

    public static void main(String[] args) {
        new MultipleComponentsInRow().createAndShowGui();
    }
}