JavaSwing计算器和日历

package shiyan11_1zz; import java.awt.*; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.KeyEvent; import java.awt.event.KeyListener; import java.awt.event.MouseEvent; import java.awt.event.MouseListener; import java.io.File; import javax.swing.*; public class ScientificCalculatorPanel extends JPanel implements ActionListener{ private JPanel leftPanel = new JPanel(new BorderLayout()); // 左侧面板 private JTextField processText = new JTextField(); // 用于显示计算过程的文本字段 private JTextField resultText = new JTextField("0"); // 用于显示计算结果的文本字段 private String resultStr = "0"; private String[] buttonExpr = { "CE", "C", "←", "÷", "7", "8", "9", "×", "4", "5", "6", "-", "1", "2", "3", "+", "+/-", "0", ".", "=" }; // 按钮表达式数组 private RoundedButton[] buttons = new RoundedButton[buttonExpr.length]; // 按钮数组 private JPanel buttonPanel = new JPanel(new GridLayout(5, 4, 10, 10)); private JPanel rightPanel = new JPanel(new BorderLayout()); // 右侧面板 private JButton logDelButton = new RoundedButton("清空"); // 日志清空按钮 private JTextArea logRecord = new JTextArea("尚无历史记录"); // 日志记录文本区域 private String command = ""; // 当前操作命令 private String lastCommand = ""; private StringBuilder equation = new StringBuilder(); private StringBuilder logRecordText = new StringBuilder(); public ScientificCalculatorPanel() { setLayout(new BorderLayout()); // 设置面板的布局管理器 setPreferredSize(new Dimension(1200, 800)); // 设置面板的首选大小 // 初始化左侧面板 leftPanel.setPreferredSize(new Dimension(850, 800)); // 设置左侧面板的大小 // 设置处理文本字段的属性 processText.setEditable(false); // 设置文本字段不可编辑 processText.setFont(new Font("黑体", Font.PLAIN, 25)); // 设置字体 processText.setHorizontalAlignment(JTextField.RIGHT); // 设置文本对齐方式为右对齐 processText.setBorder(BorderFactory.createMatteBorder(25, 3, 0, 3, new Color(181, 181, 181))); // 设置边框 processText.setBackground(new Color(181, 181, 181)); // 设置背景色 processText.setPreferredSize(new Dimension(850, 150)); // 设置首选大小 // 设置结果文本字段的属性 resultText.setEditable(false); // 设置文本字段不可编辑 resultText.setFont(new Font("黑体", Font.BOLD, 55)); // 设置字体为黑体加粗，大小为55 resultText.setHorizontalAlignment(JTextField.RIGHT); // 设置文本对齐方式为右对齐 resultText.setBorder(BorderFactory.createMatteBorder(0, 3, 5, 3, new Color(181, 181, 181))); // 设置边框 resultText.setBackground(new Color(181, 181, 181)); // 设置背景色 resultText.setPreferredSize(new Dimension(850, 50)); // 设置首选大小 // 初始化按钮面板，设置布局和边框 buttonPanel.setPreferredSize(new Dimension(850, 600)); buttonPanel.setBorder(BorderFactory.createMatteBorder(5, 3, 5, 3, new Color(181, 181, 181))); for (int i = 0; i < buttonExpr.length; i++) { buttons[i] = new RoundedButton(buttonExpr[i]); buttons[i].setFont(new Font("Arial", Font.BOLD, 40)); buttons[i].setForeground(Color.BLACK); if ("9876543210.=".contains(buttonExpr[i])) { buttons[i].setBackground(Color.white); if("=".equals(buttonExpr[i])) { buttons[i].setBackground(new Color(126, 192, 238)); } } else { buttons[i].setBackground(new Color(232, 232, 232)); if("+/-".equals(buttonExpr[i])) { buttons[i].setBackground(Color.white); } } buttons[i].addActionListener(this); buttons[i].addMouseListener(new ButtonMouseListener()); buttonPanel.add(buttons[i]); } // 将各个子面板添加到主面板 leftPanel.add(processText, BorderLayout.NORTH); // 将处理文本字段添加到左侧面板的北部 leftPanel.add(resultText, BorderLayout.CENTER); // 将结果文本字段添加到左侧面板的中部 leftPanel.add(buttonPanel, BorderLayout.SOUTH); // 将按钮面板添加到左侧面板的南部 add(leftPanel, BorderLayout.CENTER); // 将左侧面板添加到主面板的中心 // 初始化右侧面板 rightPanel.setPreferredSize(new Dimension(350, 800)); // 设置右侧面板的大小 JScrollPane rhtPanel = new JScrollPane(); // 右侧面板中的滚动面板 rhtPanel.setViewportView(logRecord); // 将日志记录文本区域设置为滚动面板的视图 rhtPanel.setBorder(null); // 设置滚动面板无边框 rightPanel.add(rhtPanel, BorderLayout.CENTER); // 将滚动面板添加到右侧面板的中心 logDelButton.setBackground(new Color(232, 232, 232)); // 设置日志清空按钮的背景色 logDelButton.setFont(new Font("黑体", Font.PLAIN, 25)); // 设置日志清空按钮的字体 logDelButton.setHorizontalAlignment(SwingConstants.CENTER); // 设置日志清空按钮的对齐方式为右对齐 logDelButton.addActionListener(e -> { logRecordText = new StringBuilder("尚无历史记录"); logRecord.setText(logRecordText.toString()); }); // 为日志清空按钮添加事件监听 rightPanel.add(logDelButton, BorderLayout.NORTH); // 将日志清空按钮添加到右侧面板的南部 logRecord.setEditable(false); // 设置文本字段不可编辑 logRecord.setFont(new Font("黑体", Font.PLAIN, 20)); add(rightPanel, BorderLayout.EAST); // 将右侧面板添加到主面板的东部 addKeyListener(new ButtonKeyListener()); setFocusable(true); SwingUtilities.invokeLater(new Runnable() { public void run() { requestFocusInWindow(); } }); } @Override public void actionPerformed(ActionEvent e) { command = e.getActionCommand(); if(lastCommand.equals("=")) { logRecordText.append(equation.toString() + resultStr + "\n"); logRecord.setText(logRecordText.toString()); equation = new StringBuilder(); } if(ScientificTools.isNumber(command)) { if(resultStr.equals("0") || resultStr.length()==0) { resultStr = command; }else if(ScientificTools.isNumber(resultStr) || lastCommand.equals("←")){ resultStr += command; } }else if(command.equals(".")) { if(ScientificTools.isNumber(resultStr) && !resultStr.contains(".")) { resultStr += command; } }else if(command.equals("+/-")) { if(ScientificTools.isNumber(resultStr)){ resultStr = "(-" + resultStr + ")"; } }else if(ScientificTools.isOperationalSymbol(command)) { equation.append(resultStr + command); resultStr = "0"; }else if(command.equals("=")) { try { equation.append(resultStr); resultStr = ScientificTools.calculate(equation.toString()); equation.append(command); } catch (Exception e1) { // TODO Auto-generated catch block resultStr = "输入有误，请检查输入"; } }else if(command.equals("C")) { resultStr = "0"; equation = new StringBuilder(); }else if(command.equals("CE")) { resultStr = "0"; }else if(command.equals("←")) { try { resultStr = equation.toString() + resultStr; resultStr = resultStr.substring(0, resultStr.length() - 1); equation = new StringBuilder(resultStr); resultStr = ""; } catch (Exception e1) { // TODO Auto-generated catch block resultStr = "已经没有了别删了"; } } processText.setText(equation.toString()); lastCommand = command; resultText.setText(resultStr); } class ButtonKeyListener implements KeyListener { @Override public void keyTyped(KeyEvent e) { // 此方法可以根据需要保持空白 } @Override public void keyPressed(KeyEvent e) { char keyChar = e.