Trafficlights.java

/*
 * Name: Janan Patel
 * Date: 3/20/2021
 * Course Number: CSC 112 
 * Course Name: Computer Science
 * Problem Number: 7
 * Email:jkpatel2001@student.stcc.edu
 * Short Description of the Problem: Traffic lights with buttons
 */

import javafx.application.Application;
import javafx.geometry.Pos;
import javafx.stage.Stage;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.StackPane;
import javafx.scene.layout.VBox;
import javafx.scene.layout.HBox;
import javafx.scene.shape.Circle;
import javafx.scene.shape.Rectangle;
import javafx.scene.layout.BorderPane;
import javafx.scene.paint.Color;

public class Trafficlights extends Application {
	public void start(Stage primaryStage) {

		Rectangle rectangle = new Rectangle();
		rectangle.setFill(Color.WHITE);
		rectangle.setWidth(150);
		rectangle.setHeight(250);
		rectangle.setStroke(Color.BLACK);
		rectangle.setStrokeWidth(2);

		VBox circlePane = new VBox(10);
		circlePane.setAlignment(Pos.CENTER);

		Circle circle1 = new Circle(35);
		circle1.setFill(Color.RED);
		circle1.setStroke(Color.BLACK);

		Circle circle2 = new Circle(35);
		circle2.setFill(Color.WHITE);
		circle2.setStroke(Color.BLACK);

		Circle circle3 = new Circle(35);
		circle3.setFill(Color.WHITE);
		circle3.setStroke(Color.BLACK);

		circlePane.getChildren().addAll(circle1, circle2, circle3);

		// Creates a stack pane to stack these two together.
		StackPane box = new StackPane();
		box.getChildren().addAll(rectangle, circlePane);

		Button buttonRed = new Button("Red");
		Button buttonYellow = new Button("Yellow");
		Button buttonGreen = new Button("Green");

		HBox buttons = new HBox(10);
		buttons.setAlignment(Pos.CENTER);

		buttons.getChildren().addAll(buttonRed, buttonYellow, buttonGreen);

		BorderPane pane = new BorderPane();
		pane.setCenter(box);
		pane.setBottom(buttons);

		Scene scene = new Scene(pane, 250, 400);
		primaryStage.setTitle("Traffic light");
		primaryStage.setScene(scene);
		primaryStage.show();

		// actions
		
		buttonRed.setOnAction(x -> {

			circle1.setFill(Color.RED);
			circle2.setFill(Color.WHITE);
			circle3.setFill(Color.WHITE);
		});

		buttonYellow.setOnAction(x -> {

			circle1.setFill(Color.WHITE);
			circle2.setFill(Color.YELLOW);
			circle3.setFill(Color.WHITE);
		});

		buttonGreen.setOnAction(x -> {

			circle1.setFill(Color.WHITE);
			circle2.setFill(Color.WHITE);
			circle3.setFill(Color.GREEN);
		});

	}

	// main method for the IDE to run the program
	public static void main(String[] args) {
		launch(args);
	}

}

Trafficlightswithoutbtns.java

/*
 * Name: Janan Patel
 * Date: 3/20/2021
 * Course Number: CSC 112 
 * Course Name: Computer Science
 * Problem Number: 7
 * Email:jkpatel2001@student.stcc.edu
 * Short Description of the Problem: Traffic lights without buttons
 */

// CLICK THE CIRCLES TO CHANGE COLOR!

import javafx.application.Application;
import javafx.geometry.Pos;
import javafx.stage.Stage;
import javafx.scene.Scene;
import javafx.scene.layout.StackPane;
import javafx.scene.layout.VBox;
import javafx.scene.shape.Circle;
import javafx.scene.shape.Rectangle;
import javafx.scene.layout.BorderPane;
import javafx.scene.paint.Color;

public class Trafficlightswithoutbtns extends Application {
	public void start(Stage primaryStage) {

		Rectangle rectangle = new Rectangle();
		rectangle.setFill(Color.WHITE);
		rectangle.setWidth(150);
		rectangle.setHeight(250);
		rectangle.setStroke(Color.BLACK);
		rectangle.setStrokeWidth(2);

		VBox circlePane = new VBox(10);
		circlePane.setAlignment(Pos.CENTER);

		Circle circle1 = new Circle(35);
		circle1.setFill(Color.RED);
		circle1.setStroke(Color.BLACK);

		Circle circle2 = new Circle(35);
		circle2.setFill(Color.WHITE);
		circle2.setStroke(Color.BLACK);

		Circle circle3 = new Circle(35);
		circle3.setFill(Color.WHITE);
		circle3.setStroke(Color.BLACK);

		circlePane.getChildren().addAll(circle1, circle2, circle3);

		// Creates a stack pane to stack these two together.
		StackPane box = new StackPane();
		box.getChildren().addAll(rectangle, circlePane);

		BorderPane pane = new BorderPane();
		pane.setCenter(box);

		Scene scene = new Scene(pane, 250, 400);
		primaryStage.setTitle("Traffic light without buttons");
		primaryStage.setScene(scene);
		primaryStage.show();
			
		// actions
		
		circle1.setOnMouseClicked(x -> {

			circle1.setFill(Color.RED);
			circle2.setFill(Color.WHITE);
			circle3.setFill(Color.WHITE);
		});

		circle2.setOnMouseClicked(x -> {

			circle1.setFill(Color.WHITE);
			circle2.setFill(Color.YELLOW);
			circle3.setFill(Color.WHITE);
		});

		circle3.setOnMouseClicked(x -> {

			circle1.setFill(Color.WHITE);
			circle2.setFill(Color.WHITE);
			circle3.setFill(Color.GREEN);
		});

	}

	// main method for the IDE to run the program
	public static void main(String[] args) {
		launch(args);
	}

}