摆动组件方向

Question

我有一个我正在研究的学校项目。我试图让我的Swing应用程序与他们给我的图片相匹配。问题是我不知道如何移动组件。我试过的所有方法要么没有奏效，要么让事情变得更糟。

package guiprjct;

import javax.swing.*;
import java.awt.*;

public class GUI extends JFrame {

    JButton button1 = new JButton("Button");
    JTextArea area = new JTextArea(10,19);
    JCheckBox box = new JCheckBox("Checkbox");
    JTextField field = new JTextField("TextField");
    JScrollBar bar = new JScrollBar();
    JFrame frame = new JFrame();

    public static void main(String[]args) {
        new GUI();
    }

    public GUI() {
        frame.setSize(400,400);
        frame.setLocationRelativeTo(null);
        frame.setDefaultCloseOperation(EXIT_ON_CLOSE);
        frame.setTitle("Frame example");

        JPanel pnl = new JPanel();

        pnl.add(button1);
        pnl.add(area);
        pnl.add(box);
        pnl.add(field);
        pnl.add(bar);

        frame.add(pnl);
        frame.setVisible(true);
    }
}

Answer 1

我敢让你的老师让这个版面在MacOS，Linux，Solaris，Windows 7和Windows 8上运行而不看它（甚至）更多废话

import java.awt.EventQueue;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollBar;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.border.EmptyBorder;

public class TestLayout40 {

    public static void main(String[] args) {
        new TestLayout40();
    }

    public TestLayout40() {
        EventQueue.invokeLater(new Runnable() {
            @Override
            public void run() {
                try {
                    UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
                } catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
                    ex.printStackTrace();
                }

                JFrame frame = new JFrame("Testing");
                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                frame.add(new TestPane());
                frame.pack();
                frame.setLocationRelativeTo(null);
                frame.setVisible(true);
            }
        });
    }

    public class TestPane extends JPanel {

        public TestPane() {
            setLayout(new GridBagLayout());
            setBorder(new EmptyBorder(8, 8, 8, 8));

            GridBagConstraints gbc = new GridBagConstraints();
            gbc.gridx = 0;
            gbc.gridy = 0;
            gbc.gridwidth = 2;
            gbc.ipadx = 30;
            gbc.ipady = 30;
            gbc.anchor = GridBagConstraints.LINE_START;
            add(new JButton("Button"), gbc);

            gbc = new GridBagConstraints();
            gbc.gridx = 2;
            gbc.gridy = 0;
            gbc.gridwidth = 2;
            gbc.ipady = 30;
            gbc.anchor = GridBagConstraints.LINE_START;
            gbc.insets = new Insets(0, 15, 0, 0);
            add(new JTextField("TextField", 15), gbc);

            gbc = new GridBagConstraints();
            gbc.gridx = 0;
            gbc.gridy = 1;
            add(new JScrollBar(), gbc);

            gbc = new GridBagConstraints();
            gbc.gridx = 1;
            gbc.gridy = 1;
            gbc.gridwidth = 2;
            gbc.ipadx = 30;
            gbc.fill = GridBagConstraints.BOTH;
            gbc.insets = new Insets(15, 0, 0, 0);
            add(new JScrollPane(new JTextArea(5, 10)), gbc);

            gbc = new GridBagConstraints();
            gbc.gridx = 1;
            gbc.gridy = 2;
            gbc.gridwidth = 2;
            gbc.weighty = 1.0;
            add(new JLabel("label"), gbc);

            gbc = new GridBagConstraints();
            gbc.gridx = 3;
            gbc.gridy = 1;
            gbc.anchor = GridBagConstraints.LINE_START;
            gbc.weightx = 1.0;
            add(new JCheckBox("Checkbox"), gbc);
        }

    }

}

Answer 2

<Component>.setBounds(_x_, _y_, _width_, _height_);

将更改GUI元素的x，y位置。也可以调整它的大小。

更多内容可以在这里阅读

https://docs.oracle.com/javase/tutorial/uiswing/layout/none.html