📅  最后修改于: 2020-10-14 06:02:02             🧑  作者: Mango
单选按钮用于向用户提供各种选项。用户只能在所有选项中选择一个。单选按钮被选中或取消选中。它可以用于测验中选择题多的情况,学生只需选择一个选项。
以下代码显示了如何从切换组中选择一个单选按钮。
package application;
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.RadioButton;
import javafx.scene.control.ToggleGroup;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;
public class RadioButtonTest extends Application {
public static void main(String[] args) {
launch(args);
}
@Override
public void start(Stage primaryStage) throws Exception {
// TODO Auto-generated method stub
ToggleGroup group = new ToggleGroup();
RadioButton button1 = new RadioButton("option 1");
RadioButton button2 = new RadioButton("option 2");
RadioButton button3 = new RadioButton("option 3");
RadioButton button4 = new RadioButton("option 4");
button1.setToggleGroup(group);
button2.setToggleGroup(group);
button3.setToggleGroup(group);
button4.setToggleGroup(group);
VBox root=new VBox();
root.setSpacing(10);
root.getChildren().addAll(button1,button2,button3,button4);
Scene scene=new Scene(root,400,300);
primaryStage.setScene(scene);
primaryStage.setTitle("Radio Button Example");
primaryStage.show();
}
}
输出: