java实现问卷设计并预览

Java可以使用多种GUI框架来实现问卷设计并预览，例如Swing和JavaFX。以下是一个使用Swing实现的问卷设计及预览的简单示例：

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import java.util.List;
import javax.swing.BorderFactory;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;

public class QuestionnaireDesigner extends JFrame implements ActionListener {
    private List<Question> questions;
    private JTextArea previewArea;
    private JTextField questionField;
    private List<JCheckBox> optionFields;

    public QuestionnaireDesigner() {
        super("Questionnaire Designer");

        // Initialize questions list
        questions = new ArrayList<Question>();

        // Create UI components
        JPanel mainPanel = new JPanel();
        mainPanel.setLayout(new BoxLayout(mainPanel, BoxLayout.Y_AXIS));

        JLabel questionLabel = new JLabel("Question:");
        questionField = new JTextField(20);

        JPanel optionPanel = new JPanel();
        optionPanel.setLayout(new BoxLayout(optionPanel, BoxLayout.Y_AXIS));
        optionPanel.setBorder(BorderFactory.createTitledBorder("Options"));
        optionFields = new ArrayList<JCheckBox>();
        for (int i = 0; i < 4; i++) {
            JCheckBox optionField = new JCheckBox("Option " + (i + 1));
            optionFields.add(optionField);
            optionPanel.add(optionField);
        }

        JButton addButton = new JButton("Add Question");
        addButton.addActionListener(this);

        previewArea = new JTextArea();
        previewArea.setEditable(false);
        JScrollPane previewScrollPane = new JScrollPane(previewArea);
        previewScrollPane.setPreferredSize(new Dimension(400, 200));

        mainPanel.add(questionLabel);
        mainPanel.add(Box.createRigidArea(new Dimension(0, 5)));
        mainPanel.add(questionField);
        mainPanel.add(Box.createRigidArea(new Dimension(0, 10)));
        mainPanel.add(optionPanel);
        mainPanel.add(Box.createRigidArea(new Dimension(0, 10)));
        mainPanel.add(addButton);
        mainPanel.add(Box.createRigidArea(new Dimension(0, 10)));
        mainPanel.add(previewScrollPane);

        getContentPane().add(mainPanel, BorderLayout.CENTER);

        // Configure frame
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        pack();
        setLocationRelativeTo(null);
        setVisible(true);
    }

    public void actionPerformed(ActionEvent e) {
        // Create question object from UI components
        String questionText = questionField.getText();
        List<String> optionTexts = new ArrayList<String>();
        for (JCheckBox optionField : optionFields) {
            if (optionField.isSelected()) {
                optionTexts.add(optionField.getText());
            }
        }
        Question question = new Question(questionText, optionTexts.toArray(new String[0]));

        // Add question to list and update preview area
        questions.add(question);
        previewArea.setText(getQuestionnaireText());
    }

    private String getQuestionnaireText() {
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < questions.size(); i++) {
            Question question = questions.get(i);
            sb.append(i + 1);
            sb.append(". ");
            sb.append(question.getText());
            sb.append("\n");
            String[] options = question.getOptions();
            for (int j = 0; j < options.length; j++) {
                sb.append("    ");
                sb.append((char) ('a' + j));
                sb.append(": ");
                sb.append(options[j]);
                sb.append("\n");
            }
            sb.append("\n");
        }
        return sb.toString();
    }

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

    private static class Question {
        private String text;
        private String[] options;

        public Question(String text, String[] options) {
            this.text = text;
            this.options = options;
        }

        public String getText() {
            return text;
        }

        public String[] getOptions() {
            return options;
        }
    }
}

这个示例使用了Swing的JFrame、JLabel、JTextField、JPanel、JCheckBox、JButton和JTextArea等组件，可以实现基本的问卷设计和预览功能。用户可以在界面中输入问题和选项，然后点击“Add Question”按钮添加问题到问卷中，同时预览区域会显示当前问卷的所有问题和选项。