73 lines
1.9 KiB
Java
73 lines
1.9 KiB
Java
import javafx.application.Application;
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import javafx.scene.Scene;
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import javafx.scene.layout.Pane;
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import javafx.stage.Stage;
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import javafx.scene.control.*;
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import javafx.event.*;
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import javafx.scene.text.*;
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import javafx.scene.text.Font;
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import javafx.collections.*;
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/**
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*
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* Beschreibung
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*
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* @version 1.0 vom 19.11.2024
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* @author
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*/
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public class Quadratzahlen extends Application {
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// Anfang Attribute
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private Button bStart = new Button();
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private ListView<String> listView1 = new ListView<>();
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private ObservableList<String> listView1ObservableList =
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FXCollections.observableArrayList();
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// Ende Attribute
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public void start(Stage primaryStage) {
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Pane root = new Pane();
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Scene scene = new Scene(root, 198, 448);
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// Anfang Komponenten
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bStart.setLayoutX(32);
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bStart.setLayoutY(32);
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bStart.setPrefHeight(24);
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bStart.setPrefWidth(80);
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bStart.setText("Start");
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bStart.setOnAction(
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(event) -> {bStart_Action(event);}
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);
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bStart.setFont(Font.font("Dialog", 11));
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root.getChildren().add(bStart);
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listView1.setLayoutX(16);
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listView1.setLayoutY(80);
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listView1.setPrefHeight(360);
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listView1.setPrefWidth(128);
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listView1.setItems(listView1ObservableList);
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root.getChildren().add(listView1);
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// Ende Komponenten
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primaryStage.setOnCloseRequest(e -> System.exit(0));
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primaryStage.setTitle("Quadratzahlen");
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primaryStage.setScene(scene);
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primaryStage.show();
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} // end of public Quadratzahlen
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// Anfang Methoden
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public static void main(String[] args) {
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launch(args);
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} // end of main
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public void bStart_Action(Event evt) {
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listView1ObservableList.removeAll();
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for (int i = 1; i < 21; i++) {
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listView1ObservableList.add(i+". " + i*i);
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}
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} // end of bStart_Action
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// Ende Methoden
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} // end of class Quadratzahlen
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