czy

src/czy/czy/BaseConverter.java

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+package czy.czy;
+
+import java.math.BigInteger;
+import java.util.Scanner;
+
+public class BaseConverter {
+
+    /**
+     * 将任意进制的数转换为另一个任意进制的数。
+     *
+     * @param numStr 原始数值的字符串表示
+     * @param fromBase 原始进制
+     * @param toBase 目标进制
+     * @return 转换后的字符串表示
+     */
+    public static String convertBase(String numStr, int fromBase, int toBase) {
+        // 验证进制是否合法
+        if (fromBase < 2 || fromBase > 16 || toBase < 2 || toBase > 16) {
+            throw new IllegalArgumentException("Base must be between 2 and 16.");
+        }
+
+        // 将原始进制的数转换为十进制
+        BigInteger decimalValue = new BigInteger(numStr, fromBase);
+
+        // 如果目标进制为10，则直接返回
+        if (toBase == 10) {
+            return decimalValue.toString();
+        }
+
+        // 将十进制数转换为目标进制
+        return decimalValue.toString(toBase).toUpperCase(); // 转换为大写以便更好识别十六进制字符
+    }
+
+    public static void main(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+
+        // 读取原始进制
+        System.out.print("请输入原始进制 (2-16): ");
+        int fromBase = scanner.nextInt();
+
+        // 读取目标进制
+        System.out.print("请输入目标进制 (2-16): ");
+        int toBase = scanner.nextInt();
+
+        // 读取原始数值
+        System.out.print("请输入原始数值: ");
+        String numStr = scanner.next();
+
+        // 调用转换方法
+        try {
+            String result = convertBase(numStr, fromBase, toBase);
+            System.out.println("转换后的结果为: " + result);
+        } catch (IllegalArgumentException e) {
+            System.out.println(e.getMessage());
+        }
+
+        scanner.close();
+    }
+}

src/czy/czy/BaseConverterApp.java

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+package czy.czy;
+
+import javafx.application.Application;
+import javafx.geometry.Insets;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.GridPane;
+import javafx.stage.Stage;
+
+import java.math.BigInteger;
+
+public class BaseConverterApp extends Application {
+
+    private TextField fromBaseField;
+    private TextField toBaseField;
+    private TextField numStrField;
+    private Label resultLabel;
+
+    @Override
+    public void start(Stage primaryStage) {
+        primaryStage.setTitle("进制转换器");
+
+        GridPane grid = new GridPane();
+        grid.setPadding(new Insets(10, 10, 10, 10));
+        grid.setVgap(8);
+        grid.setHgap(10);
+
+        Label fromBaseLabel = new Label("原始进制:");
+        fromBaseField = new TextField();
+        fromBaseField.setPromptText("2-16");
+        GridPane.setConstraints(fromBaseLabel, 0, 0);
+        GridPane.setConstraints(fromBaseField, 1, 0);
+
+        Label toBaseLabel = new Label("目标进制:");
+        toBaseField = new TextField();
+        toBaseField.setPromptText("2-16");
+        GridPane.setConstraints(toBaseLabel, 0, 1);
+        GridPane.setConstraints(toBaseField, 1, 1);
+
+        Label numStrLabel = new Label("原始数值:");
+        numStrField = new TextField();
+        GridPane.setConstraints(numStrLabel, 0, 2);
+        GridPane.setConstraints(numStrField, 1, 2);
+
+        Button convertButton = new Button("转换");
+        GridPane.setConstraints(convertButton, 1, 3);
+
+        resultLabel = new Label();
+        GridPane.setConstraints(resultLabel, 1, 4);
+
+        grid.getChildren().addAll(fromBaseLabel, fromBaseField, toBaseLabel, toBaseField, numStrLabel, numStrField, convertButton, resultLabel);
+
+        Scene scene = new Scene(grid, 300, 200);
+        primaryStage.setScene(scene);
+        primaryStage.show();
+
+        convertButton.setOnAction(event -> {
+            try {
+                int fromBase = Integer.parseInt(fromBaseField.getText());
+                int toBase = Integer.parseInt(toBaseField.getText());
+                String numStr = numStrField.getText();
+                String result = conv(numStr, fromBase, toBase);
+                resultLabel.setText("转换后的结果为: " + result);
+            } catch (IllegalArgumentException e) {
+                resultLabel.setText(e.getMessage());
+            }
+        });
+    }
+
+    public static void main(String[] args) {
+        launch(args);
+    }
+
+    public static String conv(String numStr, int fromBase, int toBase) {
+        if (fromBase < 2 || fromBase > 16 || toBase < 2 || toBase > 16) {
+            throw new IllegalArgumentException("Base must be between 2 and 16.");
+        }
+
+        BigInteger decimalValue = new BigInteger(numStr, fromBase);
+
+        if (toBase == 10) {
+            return decimalValue.toString();
+        }
+
+        return decimalValue.toString(toBase).toUpperCase();
+    }
+}