源代码.txt

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+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.util.ArrayList;
+import java.util.List;
+
+public class Main {
+    private DefaultListModel<TaskItem> listModel;
+    private JList<TaskItem> taskList;
+    private JTextField taskField;
+    private JTextField dateField;
+    private List<TaskItem> data = new ArrayList<>(); // Array to store data
+
+    public Main() {
+        // Create main window
+        JFrame frame = new JFrame("To-Do List");
+        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        frame.setSize(500, 500); // Increase window size
+
+        // Main panel
+        JPanel panel = new JPanel();
+        panel.setLayout(new BorderLayout(10, 10)); // Add margin
+
+        // Task list
+        listModel = new DefaultListModel<>();
+        taskList = new JList<>(listModel);
+        taskList.setCellRenderer(new CustomListRenderer());
+        panel.add(new JScrollPane(taskList), BorderLayout.CENTER);
+
+        // Input panel (for entering task and due date)
+        JPanel inputPanel = new JPanel(new GridLayout(3, 2, 10, 10)); // GridLayout with margin
+        inputPanel.add(new JLabel("Task:"));
+        taskField = new JTextField();
+        inputPanel.add(taskField);
+
+        inputPanel.add(new JLabel("Due Date (dd-mm-yyyy):"));
+        dateField = new JTextField();
+        inputPanel.add(dateField);
+
+        // Buttons panel
+        JPanel buttonPanel = new JPanel(new GridLayout(1, 5, 10, 10)); // 5 buttons
+        JButton addButton = new JButton("Add");
+        JButton removeButton = new JButton("Remove");
+        JButton editButton = new JButton("Edit");
+        JButton saveButton = new JButton("Save");
+        JButton toggleButton = new JButton("Completed");
+
+        // Add buttons to panel
+        buttonPanel.add(addButton);
+        buttonPanel.add(removeButton);
+        buttonPanel.add(editButton);
+        buttonPanel.add(saveButton);
+        buttonPanel.add(toggleButton);
+
+        // Add action listeners to buttons
+        addButton.addActionListener(e -> addTask());
+        removeButton.addActionListener(e -> removeTask());
+        editButton.addActionListener(e -> editTask());
+        saveButton.addActionListener(e -> saveTasks());
+        toggleButton.addActionListener(e -> toggleTaskStatus());
+
+        // Add panels to main panel
+        panel.add(inputPanel, BorderLayout.NORTH);
+        panel.add(buttonPanel, BorderLayout.SOUTH);
+
+        // Add panel to frame
+        frame.add(panel);
+        frame.setVisible(true);
+    }
+
+    // Add a new task
+    private void addTask() {
+        String taskText = taskField.getText().trim();
+        String dueDateText = dateField.getText().trim();
+        if (!taskText.isEmpty() && !dueDateText.isEmpty()) {
+            TaskItem newTask = new TaskItem(taskText, dueDateText);
+            listModel.addElement(newTask); // Add to list
+            data.add(newTask); // Add to array
+            taskField.setText("");
+            dateField.setText("");
+        }
+    }
+
+    // Remove a task
+    private void removeTask() {
+        int selectedIndex = taskList.getSelectedIndex();
+        if (selectedIndex != -1) {
+            listModel.remove(selectedIndex); // Remove from list
+            data.remove(selectedIndex); // Remove from array
+        }
+    }
+
+    // Edit a task
+    private void editTask() {
+        int selectedIndex = taskList.getSelectedIndex();
+        if (selectedIndex != -1) {
+            String newTaskText = JOptionPane.showInputDialog("Enter new task:");
+            String newDueDateText = JOptionPane.showInputDialog("Enter new due date (yyyy-mm-dd):");
+            if (newTaskText != null && newDueDateText != null) {
+                TaskItem item = listModel.getElementAt(selectedIndex);
+                item.setTask(newTaskText);
+                item.setDueDate(newDueDateText);
+                taskList.repaint(); // Refresh list
+            }
+        }
+    }
+
+    // Mark task as completed
+    private void toggleTaskStatus() {
+        int selectedIndex = taskList.getSelectedIndex();
+        if (selectedIndex != -1) {
+            TaskItem item = listModel.getElementAt(selectedIndex);
+            item.toggleCompleted();
+            taskList.repaint(); // Refresh list
+        }
+    }
+
+    // Save tasks (only in memory)
+    private void saveTasks() {
+        JOptionPane.showMessageDialog(null, "Tasks saved!");
+    }
+
+    public static void main(String[] args) {
+        SwingUtilities.invokeLater(Main::new);
+    }
+}
+
+// Task class
+class TaskItem {
+    private String task;
+    private String dueDate;
+    private boolean isCompleted;
+
+    public TaskItem(String task, String dueDate) {
+        this.task = task;
+        this.dueDate = dueDate;
+        this.isCompleted = false;
+    }
+
+    public void toggleCompleted() {
+        isCompleted = !isCompleted;
+    }
+
+    public boolean isCompleted() {
+        return isCompleted;
+    }
+
+    public String getTask() {
+        return task;
+    }
+
+    public void setTask(String task) {
+        this.task = task;
+    }
+
+    public String getDueDate() {
+        return dueDate;
+    }
+
+    public void setDueDate(String dueDate) {
+        this.dueDate = dueDate;
+    }
+
+    @Override
+    public String toString() {
+        return (isCompleted ? "✓ " : "✗ ") + task + " (" + dueDate + ")";
+    }
+}
+
+// Custom list renderer for better UI
+class CustomListRenderer extends DefaultListCellRenderer {
+    private ImageIcon checkIcon = new ImageIcon("check.png");
+    private ImageIcon uncheckIcon = new ImageIcon("uncheck.png");
+
+    @Override
+    public Component getListCellRendererComponent(JList<?> list, Object value, int index, boolean isSelected, boolean cellHasFocus) {
+        JLabel label = (JLabel) super.getListCellRendererComponent(list, value, index, isSelected, cellHasFocus);
+        if (value instanceof TaskItem) {
+            TaskItem task = (TaskItem) value;
+            label.setIcon(task.isCompleted() ? checkIcon : uncheckIcon);
+        }
+        return label;
+    }
+}