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Solution File Name: TrafficLight.doc
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Problem:
In this class, we will write a program that simulates a traffic light.
The program lets the user select one of three lights: red, yellow, or green.
When a radio button is selected, the light is turned on. Only one light can be on at a time
No light is on when the program starts.

1. MyTrafficLight.java

import javafx.application.Application;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.RadioButton;
import javafx.scene.control.ToggleGroup;
import javafx.scene.layout.HBox;
import javafx.scene.layout.Pane;
import javafx.scene.paint.Color;
import javafx.scene.shape.Circle;
import javafx.scene.shape.Rectangle;
import javafx.scene.shape.Shape;
import javafx.stage.Stage;

/**
 *In this class, we will write a program that simulates a traffic light. 
 *The program lets the user select one of three lights: red, yellow, or green. 
 *When a radio button is selected, the light is turned on. Only one light can be on at a time 
 *No light is on when the program starts.
 */

public class MyTrafficLight extends Application {

}

2. TestTraffic.java
import javafx.application.Application;

public class TestTraffic {

}