zjzh/text1.java

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.*;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

public class text1 extends Application {

    @Override
    public void start(Stage primaryStage) {
        // 创建文本输入框
        TextField inputField = new TextField();
        inputField.setPromptText("输入一个十进制数");

        // 创建标签显示结果
        Label binaryLabel = new Label();
        Label octalLabel = new Label();
        Label hexLabel = new Label();

        // 创建按钮
        Button convertButton = new Button("转换");
        convertButton.setOnAction(e -> {
            try {
                int number = Integer.parseInt(inputField.getText());
                binaryLabel.setText(String.format("二进制: %s", Integer.toBinaryString(number).toUpperCase()));
                octalLabel.setText(String.format("八进制: %s", Integer.toOctalString(number)));
                hexLabel.setText(String.format("十六进制: %s", Integer.toHexString(number).toUpperCase()));
            } catch (NumberFormatException ex) {
                Alert alert = new Alert(Alert.AlertType.ERROR);
                alert.setTitle("输入错误");
                alert.setHeaderText("无效输入");
                alert.setContentText("请输入一个有效的十进制数。");
                alert.showAndWait();
            }
        });

        // 创建布局
        VBox vBox = new VBox(10);
        vBox.getChildren().addAll(inputField, convertButton, binaryLabel, octalLabel, hexLabel);

        // 设置场景
        Scene scene = new Scene(vBox, 300, 200);

        primaryStage.setTitle("进制转换器");
        primaryStage.setScene(scene);
        primaryStage.show();
    }

    public static void main(String[] args) {
        launch(args);
    }
}