ADD1

Transform2158.java

@@ -3,68 +3,66 @@ import java.awt.*;
 import java.util.Objects;
 
 public class Transform2158 extends JFrame {
+
     private JTextField inputField;
-    private JComboBox<String> fromBaseComboBox;
+    private JComboBox<String> fromBaseBox;
-    private JComboBox<String> toBaseComboBox;
+    private JComboBox<String> toBaseBox;
-    private JTextField resultField;
+    private JTextArea resultArea;
 
     public Transform2158() {
-        // 初始化界面
+        setTitle("进制转换器");
-        setTitle("进制转换");
         setSize(400, 300);
         setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
         setLocationRelativeTo(null); // 居中显示
+
         initUI();
     }
 
     private void initUI() {
-        JPanel panel = new JPanel(new GridLayout(4, 2));
+        JPanel panel = new JPanel();
+        panel.setLayout(new GridLayout(5, 2));
 
-        JLabel inputLabel = new JLabel("输入数字:");
+        panel.add(new JLabel("输入数字: "));
-        inputField = new JTextField(20);
+        inputField = new JTextField();
-        panel.add(inputLabel);
         panel.add(inputField);
 
-        JLabel fromBaseLabel = new JLabel("从进制:");
+        panel.add(new JLabel("从进制: "));
-        String[] bases = {"2", "8", "10", "16"};
+        fromBaseBox = new JComboBox<>(new String[]{"2", "8", "10", "16"});
-        fromBaseComboBox = new JComboBox<>(bases);
+        panel.add(fromBaseBox);
-        panel.add(fromBaseLabel);
-        panel.add(fromBaseComboBox);
 
-        JLabel toBaseLabel = new JLabel("到进制:");
+        panel.add(new JLabel("到进制: "));
-        toBaseComboBox = new JComboBox<>(bases);
+        toBaseBox = new JComboBox<>(new String[]{"2", "8", "10", "16"});
-        panel.add(toBaseLabel);
+        panel.add(toBaseBox);
-        panel.add(toBaseComboBox);
 
         JButton convertButton = new JButton("转换");
         convertButton.addActionListener(e -> performConversion());
         panel.add(convertButton);
 
-        JLabel resultLabel = new JLabel("结果:");
+        resultArea = new JTextArea(5, 20);
-        resultField = new JTextField(20);
+        resultArea.setEditable(false);
-        resultField.setEditable(false);
+        panel.add(new JScrollPane(resultArea));
-        panel.add(resultLabel);
-        panel.add(resultField);
 
         add(panel);
-        setVisible(true);
     }
 
     private void performConversion() {
         String input = inputField.getText();
-        int fromBase = Integer.parseInt((String) Objects.requireNonNull(fromBaseComboBox.getSelectedItem()));
+        int fromBase = Integer.parseInt((String) Objects.requireNonNull(fromBaseBox.getSelectedItem()));
-        int toBase = Integer.parseInt((String) Objects.requireNonNull(toBaseComboBox.getSelectedItem()));
+        int toBase = Integer.parseInt((String) Objects.requireNonNull(toBaseBox.getSelectedItem()));
 
         try {
             int number = Integer.parseInt(input, fromBase);
             String result = Integer.toString(number, toBase);
-            resultField.setText(result);
+            resultArea.setText("转换结果: " + result);
-        } catch (NumberFormatException ex) {
+        } catch (NumberFormatException e) {
-            JOptionPane.showMessageDialog(this, "输入错误，请检查输入格式。", "错误", JOptionPane.ERROR_MESSAGE);
+            resultArea.setText("输入的数字在指定的进制中无效。");
         }
     }
 
     public static void main(String[] args) {
-        SwingUtilities.invokeLater(Transform2158::new);
+        EventQueue.invokeLater(() -> {
+            Transform2158 ex = new Transform2158();
+            ex.setVisible(true);
+        });
     }
 }