Decimalconversion/BaseConverterController.java

import javafx.fxml.FXML;
import javafx.scene.control.Label;
import javafx.scene.control.TextField;

public class BaseConverterController {

    @FXML
    private TextField txtNumber; // 输入数字的文本框
    @FXML
    private TextField txtFromBase; // 输入源进制的文本框
    @FXML
    private TextField txtToBase; // 输入目标进制的文本框
    @FXML
    private Label lblResult; // 显示结果的标签

    // 按钮点击事件处理
    @FXML
    protected void handleConvert() {
        try {
            String number = txtNumber.getText();
            int fromBase = Integer.parseInt(txtFromBase.getText());
            int toBase = Integer.parseInt(txtToBase.getText());

            // 验证进制范围
            if (fromBase < 2 || fromBase > 16 || toBase < 2 || toBase > 16) {
                lblResult.setText("无效的进制 (2 ≤ R ≤ 16)");
            } else {
                // 进行进制转换
                String result = convertBase(number, fromBase, toBase);
                lblResult.setText("结果: " + result);
            }
        } catch (NumberFormatException ex) {
            lblResult.setText("输入无效，请输入有效的数字。");
        }
    }

    // 进制转换的辅助方法
    private String convertBase(String number, int fromBase, int toBase) {
        int decimalValue = Integer.parseInt(number, fromBase); // 转换为十进制
        return Integer.toString(decimalValue, toBase).toUpperCase(); // 转换为目标进制
    }
}