在复选框组java swing中选择多个复选框

Question

我正在处理Jframe netbeans IDE 基本上我以我想在一个框架中制作一组checkboxes 至少两个组并且每个组有很多checkboxes 我想选择多个checkbox 在每个组中并返回我读过的复选框的值，按钮组在这种情况下不适用，因为按钮组只有一个选择。非常感谢任何有关如何执行此操作的代码 sn-p 或想法。

UPDATE

找到this 示例，这就是我希望我的复选框的行为方式，只是我不想将它们放在表中，而且 netbeans IDE 中没有表组件，我可以为此拖动任何关于如何执行此操作的想法很多赞赏

Answer 1

我同意 Trashgod 的观点，JTable 可能是一个不错的起点，另一种选择是自己动手...

每个“列”都是它自己的组件，允许您选择多个选项，但仅限于该“组”的上下文中

import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.FlowLayout;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.GridLayout;
import java.awt.LayoutManager;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import java.util.List;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JViewport;
import javax.swing.Scrollable;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;

public class Test {

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

    public Test() {
        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.setLayout(new GridLayout(0, 2));
                frame.add(new CheckBoxGroup(new String[]{"Bananas", "Oranages", "Apples", "Pears"}));
                frame.add(new CheckBoxGroup(new String[]{"Learn Archery", "Float in the dead sea", "Swing with a whale shark", "Sail the greek islands", "Go skydiving", "Dance in the rain", "Cycle through the Netherlands"}));
                frame.pack();
                frame.setLocationRelativeTo(null);
                frame.setVisible(true);
            }
        });
    }

    public class CheckBoxGroup extends JPanel {

        private JCheckBox all;
        private List<JCheckBox> checkBoxes;

        public CheckBoxGroup(String... options) {
            checkBoxes = new ArrayList<>(25);
            setLayout(new BorderLayout());
            JPanel header = new JPanel(new FlowLayout(FlowLayout.LEFT, 1, 1));
            all = new JCheckBox("Select All...");
            all.addActionListener(new ActionListener() {
                @Override
                public void actionPerformed(ActionEvent e) {
                    for (JCheckBox cb : checkBoxes) {
                        cb.setSelected(all.isSelected());
                    }
                }
            });
            header.add(all);
            add(header, BorderLayout.NORTH);

            JPanel content = new ScrollablePane(new GridBagLayout());
            content.setBackground(UIManager.getColor("List.background"));
            if (options.length > 0) {

                GridBagConstraints gbc = new GridBagConstraints();
                gbc.gridwidth = GridBagConstraints.REMAINDER;
                gbc.anchor = GridBagConstraints.NORTHWEST;
                gbc.weightx = 1;
                for (int index = 0; index < options.length - 1; index++) {
                    JCheckBox cb = new JCheckBox(options[index]);
                    cb.setOpaque(false);
                    checkBoxes.add(cb);
                    content.add(cb, gbc);
                }

                JCheckBox cb = new JCheckBox(options[options.length - 1]);
                cb.setOpaque(false);
                checkBoxes.add(cb);
                gbc.weighty = 1;
                content.add(cb, gbc);

            }

            add(new JScrollPane(content));
        }

        public class ScrollablePane extends JPanel implements Scrollable {

            public ScrollablePane(LayoutManager layout) {
                super(layout);
            }

            public ScrollablePane() {
            }

            @Override
            public Dimension getPreferredScrollableViewportSize() {
                return new Dimension(100, 100);
            }

            @Override
            public int getScrollableUnitIncrement(Rectangle visibleRect, int orientation, int direction) {
                return 32;
            }

            @Override
            public int getScrollableBlockIncrement(Rectangle visibleRect, int orientation, int direction) {
                return 32;
            }

            @Override
            public boolean getScrollableTracksViewportWidth() {
                boolean track = false;
                Container parent = getParent();
                if (parent instanceof JViewport) {
                    JViewport vp = (JViewport) parent;
                    track = vp.getWidth() > getPreferredSize().width;
                }
                return track;
            }

            @Override
            public boolean getScrollableTracksViewportHeight() {
                boolean track = false;
                Container parent = getParent();
                if (parent instanceof JViewport) {
                    JViewport vp = (JViewport) parent;
                    track = vp.getHeight() > getPreferredSize().height;
                }
                return track;
            }

        }

    }

}

它没有做的是返回一个选定项目的列表，但是迭代 checkBoxes List 有多难，检查项目是否被选中，提取它的文本并添加将其发送给另一个List 并返回结果...？