1111

Transform2158.java

@@ -0,0 +1,70 @@
+import javax.swing.*;
+import java.awt.*;
+import java.util.Objects;
+
+public class Transform2158 extends JFrame {
+    private JTextField inputField;
+    private JComboBox<String> fromBaseComboBox;
+    private JComboBox<String> toBaseComboBox;
+    private JTextField resultField;
+
+    public Transform2158() {
+        // 初始化界面
+        setTitle("进制转换工
+        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));
+
+        JLabel inputLabel = new JLabel("输入数字:");
+        inputField = new JTextField(20);
+        panel.add(inputLabel);
+        panel.add(inputField);
+
+        JLabel fromBaseLabel = new JLabel("从进制:");
+        String[] bases = {"2", "8", "10", "16"};
+        fromBaseComboBox = new JComboBox<>(bases);
+        panel.add(fromBaseLabel);
+        panel.add(fromBaseComboBox);
+
+        JLabel toBaseLabel = new JLabel("到进制:");
+        toBaseComboBox = new JComboBox<>(bases);
+        panel.add(toBaseLabel);
+        panel.add(toBaseComboBox);
+
+        JButton convertButton = new JButton("转换");
+        convertButton.addActionListener(e -> performConversion());
+        panel.add(convertButton);
+
+        JLabel resultLabel = new JLabel("结果:");
+        resultField = new JTextField(20);
+        resultField.setEditable(false);
+        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 toBase = Integer.parseInt((String) Objects.requireNonNull(toBaseComboBox.getSelectedItem()));
+
+        try {
+            int number = Integer.parseInt(input, fromBase);
+            String result = Integer.toString(number, toBase);
+            resultField.setText(result);
+        } catch (NumberFormatException ex) {
+            JOptionPane.showMessageDialog(this, "输入错误，请检查输入格式。", "错误", JOptionPane.ERROR_MESSAGE);
+        }
+    }
+
+    public static void main(String[] args) {
+        SwingUtilities.invokeLater(Transform2158::new);
+    }
+}

Transform4381.java

@@ -0,0 +1,27 @@
+import java.util.Scanner;
+
+public class Transform4381 {
+
+//此代码不实现界面
+
+    public static void main(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+
+        System.out.print("请输入输入数字: ");
+        String input = scanner.nextLine();
+
+        System.out.print("请输入从进制 (2, 8, 10, 16): ");
+        int fromBase = scanner.nextInt();
+
+        System.out.print("请输入到进制 (2, 8, 10, 16): ");
+        int toBase = scanner.nextInt();
+
+        try {
+            int number = Integer.parseInt(input, fromBase);
+            String result = Integer.toString(number, toBase);
+            System.out.println("转换结果: " + result);
+        } catch (NumberFormatException e) {
+            System.out.println("输入的数字在指定的进制中无效。");
+        }
+    }
+}