Java 正确设计具有网格布局的面板_Java_Swing_Jpanel_Layout Manager_Gridbaglayout

Java 正确设计具有网格布局的面板

java swing

Java 正确设计具有网格布局的面板,java,swing,jpanel,layout-manager,gridbaglayout,Java,Swing,Jpanel,Layout Manager,Gridbaglayout,我有GridBagLayout，在这里我添加了一个JLabel，一个JTextfield。但它的范围是不可预测的来源输出问题陈述我原以为它会像下图一样出现，但事实并非如此。我想我在来源上有问题问题: 我关于gridbaglayout的资料已经很好了吗？如何正确设计它您可以使用嵌套的JPanel创建这样的GUI。每个JPanel都可以使用最适合特定JPanel的布局管理器以下是GUI：我创建了一个主JPanel来容纳所有的下级JPanel。主JPanel使用BoxLayout

我有GridBagLayout，在这里我添加了一个JLabel，一个JTextfield。但它的范围是不可预测的

来源输出

问题陈述我原以为它会像下图一样出现，但事实并非如此。我想我在来源上有问题

问题:

我关于gridbaglayout的资料已经很好了吗？如何正确设计它

您可以使用嵌套的JPanel创建这样的GUI。每个JPanel都可以使用最适合特定JPanel的布局管理器

以下是GUI：

我创建了一个主JPanel来容纳所有的下级JPanel。主JPanel使用BoxLayout，即页面方向

保存标题的JPanel使用FlowLayout

保存学生信息的JPanel使用GridBagLayout

保存MP信息的JPanel使用不同的网格布局

持有submit按钮的JPanel使用FlowLayout

这是密码。这就是解决方案的简短、自包含、可运行的示例

package com.ggl.testing;

import java.awt.Component;
import java.awt.Container;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;

import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;

public class StudentDataEditor implements Runnable {

    private static final Insets normalInsets = new Insets(10, 10, 0, 10);
    private static final Insets topInsets = new Insets(30, 10, 0, 10);

    private Student student;

    public static void main(String[] args) {
        SwingUtilities.invokeLater(new StudentDataEditor());
    }

    public StudentDataEditor() {
        this.student = new Student("00000017108", "Sutandi",
                "Information Systems", 2);
    }

    @Override
    public void run() {
        JFrame frame = new JFrame("Student Data Editor");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.add(createMainPanel());
        frame.pack();
        frame.setLocationByPlatform(true);
        frame.setVisible(true);
    }

    private JPanel createMainPanel() {
        JPanel panel = new JPanel();
        panel.setLayout(new BoxLayout(panel, BoxLayout.PAGE_AXIS));

        panel.add(createTitlePanel());
        panel.add(createStudentPanel());
        panel.add(createMPPanel());
        panel.add(Box.createVerticalStrut(30));
        panel.add(createEmailPanel());
        panel.add(Box.createVerticalStrut(10));

        return panel;
    }

    private JPanel createTitlePanel() {
        JPanel panel = new JPanel();

        JLabel titleLabel = new JLabel("CEK NILAI");
        titleLabel.setFont(titleLabel.getFont().deriveFont(24F));

        panel.add(titleLabel);

        return panel;
    }

    private JPanel createStudentPanel() {
        JPanel panel = new JPanel();
        panel.setLayout(new GridBagLayout());

        int gridy = 0;

        JLabel idLabel = new JLabel("ID:");
        addComponent(panel, idLabel, 0, gridy, 1, 1, topInsets,
                GridBagConstraints.LINE_START, GridBagConstraints.HORIZONTAL);

        JTextField idTextField = new JTextField(15);
        idTextField.setEditable(false);
        idTextField.setText(student.getId());
        addComponent(panel, idTextField, 1, gridy, 1, 1, topInsets,
                GridBagConstraints.LINE_START, GridBagConstraints.HORIZONTAL);

        JLabel jurusanLabel = new JLabel("Jurusan:");
        addComponent(panel, jurusanLabel, 2, gridy, 1, 1, topInsets,
                GridBagConstraints.LINE_START, GridBagConstraints.HORIZONTAL);

        JTextField jurusanTextField = new JTextField(15);
        jurusanTextField.setEditable(false);
        jurusanTextField.setText(student.getJurusan());
        addComponent(panel, jurusanTextField, 3, gridy++, 1, 1, topInsets,
                GridBagConstraints.LINE_START, GridBagConstraints.HORIZONTAL);

        JLabel nameLabel = new JLabel("Name:");
        addComponent(panel, nameLabel, 0, gridy, 1, 1, normalInsets,
                GridBagConstraints.LINE_START, GridBagConstraints.HORIZONTAL);

        JTextField nameTextField = new JTextField(15);
        nameTextField.setEditable(false);
        nameTextField.setText(student.getName());
        addComponent(panel, nameTextField, 1, gridy, 1, 1, normalInsets,
                GridBagConstraints.LINE_START, GridBagConstraints.HORIZONTAL);

        JLabel semesterLabel = new JLabel("Semester:");
        addComponent(panel, semesterLabel, 2, gridy, 1, 1, normalInsets,
                GridBagConstraints.LINE_START, GridBagConstraints.HORIZONTAL);

        JTextField semesterTextField = new JTextField(15);
        semesterTextField.setEditable(false);
        semesterTextField.setText(Integer.toString(student.getSemester()));
        addComponent(panel, semesterTextField, 3, gridy++, 1, 1, normalInsets,
                GridBagConstraints.LINE_START, GridBagConstraints.HORIZONTAL);

        return panel;
    }

    private JPanel createMPPanel() {
        JPanel panel = new JPanel();
        panel.setLayout(new GridBagLayout());

        int gridy = 0;

        JLabel mp1Label = new JLabel("MP1");
        addComponent(panel, mp1Label, 0, gridy, 1, 1, topInsets,
                GridBagConstraints.LINE_START, GridBagConstraints.HORIZONTAL);

        JTextField mp1TextField = new JTextField(25);
        addComponent(panel, mp1TextField, 1, gridy++, 1, 1, topInsets,
                GridBagConstraints.LINE_START, GridBagConstraints.HORIZONTAL);

        JLabel mp2Label = new JLabel("MP2");
        addComponent(panel, mp2Label, 0, gridy, 1, 1, normalInsets,
                GridBagConstraints.LINE_START, GridBagConstraints.HORIZONTAL);

        JTextField mp2TextField = new JTextField(25);
        addComponent(panel, mp2TextField, 1, gridy++, 1, 1, normalInsets,
                GridBagConstraints.LINE_START, GridBagConstraints.HORIZONTAL);

        JLabel mp3Label = new JLabel("MP3");
        addComponent(panel, mp3Label, 0, gridy, 1, 1, normalInsets,
                GridBagConstraints.LINE_START, GridBagConstraints.HORIZONTAL);

        JTextField mp3TextField = new JTextField(25);
        addComponent(panel, mp3TextField, 1, gridy++, 1, 1, normalInsets,
                GridBagConstraints.LINE_START, GridBagConstraints.HORIZONTAL);

        JLabel mp4Label = new JLabel("MP4");
        addComponent(panel, mp4Label, 0, gridy, 1, 1, normalInsets,
                GridBagConstraints.LINE_START, GridBagConstraints.HORIZONTAL);

        JTextField mp4TextField = new JTextField(25);
        addComponent(panel, mp4TextField, 1, gridy++, 1, 1, normalInsets,
                GridBagConstraints.LINE_START, GridBagConstraints.HORIZONTAL);

        JLabel mp5Label = new JLabel("MP5");
        addComponent(panel, mp5Label, 0, gridy, 1, 1, normalInsets,
                GridBagConstraints.LINE_START, GridBagConstraints.HORIZONTAL);

        JTextField mp5TextField = new JTextField(25);
        addComponent(panel, mp5TextField, 1, gridy++, 1, 1, normalInsets,
                GridBagConstraints.LINE_START, GridBagConstraints.HORIZONTAL);

        return panel;
    }

    private JPanel createEmailPanel() {
        JPanel panel = new JPanel();

        JButton submitButton = new JButton("Send to my email");

        panel.add(submitButton);

        return panel;
    }

    private void addComponent(Container container, Component component,
            int gridx, int gridy, int gridwidth, int gridheight, Insets insets,
            int anchor, int fill) {
        GridBagConstraints gbc = new GridBagConstraints(gridx, gridy,
                gridwidth, gridheight, 0.0D, 0.0D, anchor, fill, insets, 0, 0);
        container.add(component, gbc);
    }

    public class Student {
        private final int semester;

        private final String id;
        private final String name;
        private final String jurusan;

        public Student(String id, String name, String jurusan, int semester) {
            this.id = id;
            this.name = name;
            this.jurusan = jurusan;
            this.semester = semester;
        }

        public int getSemester() {
            return semester;
        }

        public String getId() {
            return id;
        }

        public String getName() {
            return name;
        }

        public String getJurusan() {
            return jurusan;
        }

    }

}