JAVA FX PROBLEM 15.1 (Pick four cards) Write a program that lets the user click

Question

JAVA FX PROBLEM

15.1 (Pick four cards) Write a program that lets the user click the Refresh button to display four cards from a deck of 52 cards, as shown in Figure below

15.4 Write a program to perform addition, subtraction, multiplication, and division, as shown in Figure below

15.5 (Geometry: add and remove points) Write a program that lets the user click on a pane to dynamically create and remove points (see Figure below). When the user left-clicks the mouse (primary button), a point is created and displayed at the mouse point. The user can remove a point by pointing to it and right clicking the mouse (secondary button).

Figures displayed in - https://www.dropbox.com/s/y3qzm1fupbzlccs/Lab%205%20%281%29.pdf?dl=0

Explanation / Answer

}

15.4

15.5

}

import javafx.application.Application; import javafx.geometry.Insets; import javafx.geometry.Pos; import javafx.scene.Scene; import javafx.scene.control.Button; import javafx.scene.image.Image; import javafx.scene.image.ImageView; import javafx.scene.layout.BorderPane; import javafx.scene.layout.HBox; import javafx.stage.Stage; public class Exercise_01 extends Application { @Override public void start(Stage primaryStage) { HBox hBox = new HBox(); hBox.setAlignment(Pos.CENTER); hBox.setSpacing(10); setRandomCards(hBox); HBox buttons = new HBox(); buttons.setAlignment(Pos.BOTTOM_CENTER); buttons.setSpacing(10); Button btRefresh = new Button("Refresh"); btRefresh.setOnAction(e -> setRandomCards(hBox)); buttons.getChildren().add(btRefresh); BorderPane borderPane = new BorderPane(); borderPane.setCenter(hBox); borderPane.setBottom(buttons); BorderPane.setMargin(buttons, new Insets(10, 10, 10, 10)); borderPane.setPadding(new Insets(10, 10, 0, 10)); borderPane.autosize(); Scene scene = new Scene(borderPane, borderPane.getPrefWidth(), borderPane.getPrefHeight()); primaryStage.setTitle("3 Random Cards"); primaryStage.setScene(scene); primaryStage.show(); } private void setRandomCards(HBox pane){ boolean[] usedCards = new boolean[52]; // choose 3 random distinct cards from the deck int count = 0; pane.getChildren().clear(); while (count < 4) { int card = (int) (Math.random() * 52); if (!usedCards[card]) { usedCards[card] = true; // card png files start from 1, so increment card by one for the correct file name. pane.getChildren().add(new ImageView(new Image("image/card/" + (++card) + ".png"))); count++; } } } public static void main(String[] args) { Application.launch(args); }

}

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