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//'main' method must be in a class 'Rextester'.
//Compiler version 1.8.0_111
 
package Graphics;
 
import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.input.KeyCode;
import javafx.scene.paint.Color;
import javafx.scene.shape.Polygon;
import javafx.scene.shape.Rectangle;
import javafx.scene.transform.Rotate;
import javafx.scene.transform.Scale;
import javafx.stage.Stage;
 
import java.util.Random;
 
 
public class Second extends Application {
    private static Random random;
    private final double[] trianglePoints = new double[] {650, 70, 750, 220, 550, 220};
    private final double x = 250, y = 100, width = 100, height = 100;
    private final double moveX = 10, moveY = 20;
    private final double theta = 135;
 
    public static void main(String[] args) {
        launch(args);
    }
 
    @Override
    public void start(Stage window) {
        random = new Random();
 
        Group group = new Group();
 
        Rectangle rectangle = new Rectangle(x, y, width, height);
        Polygon triangle = new Polygon(trianglePoints);
        Color rectColor = getColor(random);
        rectangle.setFill(rectColor);
        triangle.setFill(getColor(random));
 
        group.getChildren().addAll(rectangle, triangle);
 
        Scene scene = new Scene(group, 1000, 400, Color.LIGHTGRAY);
 
        scene.setOnKeyPressed(e -> {
            if (e.getCode() == KeyCode.C) {
 
                rectangle.setFill(getColor(random));
                triangle.setFill(getColor(random));
 
            } else if (e.getCode() == KeyCode.DIGIT1) {
                Rotate rectRotate = new Rotate();
 
                rectRotate.setAngle(theta);
                rectRotate.setPivotX(rectangle.getX() + rectangle.getWidth() / 2);
                rectRotate.setPivotY(rectangle.getY() + rectangle.getHeight() / 2);
 
                rectangle.getTransforms().add(rectRotate);
                rectangle.setFill(triangle.getFill());
 
            } else if (e.getCode() == KeyCode.DIGIT2) {
                Scale rectScale = new Scale();
 
                rectScale.setX(2);
                rectScale.setY(2);
                rectScale.setPivotX(rectangle.getX() + rectangle.getWidth() / 2);
                rectScale.setPivotY(rectangle.getY() + rectangle.getHeight() / 2);
 
                rectangle.getTransforms().add(rectScale);
                rectangle.setFill(triangle.getFill());
 
            } else if (e.getCode() == KeyCode.DIGIT3) {
 
                rectangle.setX(rectangle.getX() + moveX);
                rectangle.setY(rectangle.getY() + moveY);
 
                rectangle.setFill(triangle.getFill());
 
            } else if (e.getCode() == KeyCode.SPACE) {
 
                rectangle.getTransforms().clear();
                rectangle.setX(x);
                rectangle.setY(y);
                rectangle.setFill(rectColor);
 
            }
        });
 
        window.setTitle("Labrador 2");
        window.setScene(scene);
        window.show();
    }
 
    public Color getColor(Random r) {
        return Color.color(r.nextDouble(), r.nextDouble(), r.nextDouble());
    }
}
 

Main.java:20: error: class Second is public, should be declared in a file named Second.java
public class Second extends Application {
       ^
Main.java:6: error: package javafx.application does not exist
import javafx.application.Application;
                         ^
Main.java:7: error: package javafx.scene does not exist
import javafx.scene.Group;
                   ^
Main.java:8: error: package javafx.scene does not exist
import javafx.scene.Scene;
                   ^
Main.java:9: error: package javafx.scene.input does not exist
import javafx.scene.input.KeyCode;
                         ^
Main.java:10: error: package javafx.scene.paint does not exist
import javafx.scene.paint.Color;
                         ^
Main.java:11: error: package javafx.scene.shape does not exist
import javafx.scene.shape.Polygon;
                         ^
Main.java:12: error: package javafx.scene.shape does not exist
import javafx.scene.shape.Rectangle;
                         ^
Main.java:13: error: package javafx.scene.transform does not exist
import javafx.scene.transform.Rotate;
                             ^
Main.java:14: error: package javafx.scene.transform does not exist
import javafx.scene.transform.Scale;
                             ^
Main.java:15: error: package javafx.stage does not exist
import javafx.stage.Stage;
                   ^
Main.java:20: error: cannot find symbol
public class Second extends Application {
                            ^
  symbol: class Application
Main.java:32: error: cannot find symbol
    public void start(Stage window) {
                      ^
  symbol:   class Stage
  location: class Second
Main.java:96: error: cannot find symbol
    public Color getColor(Random r) {
           ^
  symbol:   class Color
  location: class Second
Main.java:28: error: cannot find symbol
        launch(args);
        ^
  symbol:   method launch(String[])
  location: class Second
Main.java:31: error: method does not override or implement a method from a supertype
    @Override
    ^
Main.java:35: error: cannot find symbol
        Group group = new Group();
        ^
  symbol:   class Group
  location: class Second
Main.java:35: error: cannot find symbol
        Group group = new Group();
                          ^
  symbol:   class Group
  location: class Second
Main.java:37: error: cannot find symbol
        Rectangle rectangle = new Rectangle(x, y, width, height);
        ^
  symbol:   class Rectangle
  location: class Second
Main.java:37: error: cannot find symbol
        Rectangle rectangle = new Rectangle(x, y, width, height);
                                  ^
  symbol:   class Rectangle
  location: class Second
Main.java:38: error: cannot find symbol
        Polygon triangle = new Polygon(trianglePoints);
        ^
  symbol:   class Polygon
  location: class Second
Main.java:38: error: cannot find symbol
        Polygon triangle = new Polygon(trianglePoints);
                               ^
  symbol:   class Polygon
  location: class Second
Main.java:39: error: cannot find symbol
        Color rectColor = getColor(random);
        ^
  symbol:   class Color
  location: class Second
Main.java:45: error: cannot find symbol
        Scene scene = new Scene(group, 1000, 400, Color.LIGHTGRAY);
        ^
  symbol:   class Scene
  location: class Second
Main.java:45: error: cannot find symbol
        Scene scene = new Scene(group, 1000, 400, Color.LIGHTGRAY);
                          ^
  symbol:   class Scene
  location: class Second
Main.java:45: error: cannot find symbol
        Scene scene = new Scene(group, 1000, 400, Color.LIGHTGRAY);
                                                  ^
  symbol:   variable Color
  location: class Second
Main.java:48: error: cannot find symbol
            if (e.getCode() == KeyCode.C) {
                               ^
  symbol:   variable KeyCode
  location: class Second
Main.java:53: error: cannot find symbol
            } else if (e.getCode() == KeyCode.DIGIT1) {
                                      ^
  symbol:   variable KeyCode
  location: class Second
Main.java:54: error: cannot find symbol
                Rotate rectRotate = new Rotate();
                ^
  symbol:   class Rotate
  location: class Second
Main.java:54: error: cannot find symbol
                Rotate rectRotate = new Rotate();
                                        ^
  symbol:   class Rotate
  location: class Second
Main.java:63: error: cannot find symbol
            } else if (e.getCode() == KeyCode.DIGIT2) {
                                      ^
  symbol:   variable KeyCode
  location: class Second
Main.java:64: error: cannot find symbol
                Scale rectScale = new Scale();
                ^
  symbol:   class Scale
  location: class Second
Main.java:64: error: cannot find symbol
                Scale rectScale = new Scale();
                                      ^
  symbol:   class Scale
  location: class Second
Main.java:74: error: cannot find symbol
            } else if (e.getCode() == KeyCode.DIGIT3) {
                                      ^
  symbol:   variable KeyCode
  location: class Second
Main.java:81: error: cannot find symbol
            } else if (e.getCode() == KeyCode.SPACE) {
                                      ^
  symbol:   variable KeyCode
  location: class Second
Main.java:97: error: cannot find symbol
        return Color.color(r.nextDouble(), r.nextDouble(), r.nextDouble());
               ^
  symbol:   variable Color
  location: class Second
36 errors

Standard output is empty