Program Explanation Program: //Import required package import javafx.application.Application; import javafx.scene.canvas.Canvas; import javafx.scene.Scene; import javafx.scene.Group; import javafx.stage.Stage; import javafx.scene.canvas.GraphicsContext; import javafx.scene.shape.ArcType; import javafx.scene.paint.Color; //Define "MagicWandPicture" class public class MagicWandPicture extends Application { //Declare required variables public static final int X_BASE = 100; public static final int Y_BASE = 100; public static final int POINT_VALUE = 75; /* Method definition for draw stae */ public static void drawStar(GraphicsContext gc) { /* Create two array for "x" and "y" value */ double x_Value[] = new double[9]; double y_Value[] = new double[9]; /* Define array value for draw star */ x_Value[0] = X_BASE; y_Value[0] = Y_BASE - POINT_VALUE; x_Value[1] = X_BASE+POINT_VALUE/5; y_Value[1] = Y_BASE - POINT_VALUE/5; x_Value[2] = X_BASE+POINT_VALUE; y_Value[2] = Y_BASE; x_Value[3] = X_BASE+POINT_VALUE/5; y_Value[3] = Y_BASE + POINT_VALUE/5; x_Value[4] = X_BASE; y_Value[4] = Y_BASE + POINT_VALUE; x_Value[5] = X_BASE-POINT_VALUE/5; y_Value[5] = Y_BASE + POINT_VALUE/5; x_Value[6] = X_BASE-POINT_VALUE; y_Value[6] = Y_BASE; x_Value[7] = X_BASE-POINT_VALUE/5; y_Value[7] = Y_BASE - POINT_VALUE/5; x_Value[8] = X_BASE; y_Value[8] = Y_BASE - POINT_VALUE; /* Fill the color yellow to star using "setFill" method */ gc.setFill(Color.YELLOW); /* Fills the inside of the polygon with color using "fillPolygon" method */ gc.fillPolygon(x_Value, y_Value, 9); /* Set color black using "setStroke" method */ gc.setStroke(Color.BLACK); /* Draws polyline using "strokePolyline" method */ gc.strokePolyline(x_Value, y_Value, 9); } /* Method definition for draw wand */ public static void drawWand(GraphicsContext gc) { /* Create two array for "x" and "y" value */ double x_Value[] = new double[9]; double y_Value[] = new double[9]; /* Define array value for draw wand */ x_Value[0] = X_BASE-POINT_VALUE/9; y_Value[0] = Y_BASE; x_Value[1] = X_BASE+POINT_VALUE/9; y_Value[1] = Y_BASE; x_Value[2] = X_BASE+POINT_VALUE/9; y_Value[2] = Y_BASE + 3*POINT_VALUE; x_Value[3] = X_BASE-POINT_VALUE/9; y_Value[3] = Y_BASE + 3*POINT_VALUE; x_Value[4] = X_BASE-POINT_VALUE/9; y_Value[4] = Y_BASE; /* Fill the color blue to wand using "setFill" method */ gc.setFill(Color.BLUE); /* Fills the inside of the polygon with color using "fillPolygon" method */ gc.fillPolygon(x_Value, y_Value, 5); } /* Method definition for draw aura for each corner of star */ public static void drawAura(GraphicsContext gc) { /* Create two array for "x" and "y" value */ double x_Value[] = new double[9]; double y_Value[] = new double[9]; /* Define array value for draw aura */ x_Value[0] = X_BASE+4*POINT_VALUE/10; y_Value[0] = Y_BASE + 5*POINT_VALUE/10; x_Value[1] = X_BASE+3*POINT_VALUE/10; y_Value[1] = Y_BASE + 3*POINT_VALUE/10; x_Value[2] = X_BASE+5*POINT_VALUE/10; y_Value[2] = Y_BASE + 4*POINT_VALUE/10; /* Set color red for aura using "setStroke" method */ gc.setStroke(Color.RED); /* Draws polyline using "strokePolyline" method */ gc...

Java: An Introduction to Problem Solving and Programming (7th Edition)

7th Edition

ISBN: 9780133766264

Author: Walter Savitch

Publisher: PEARSON

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Given a relation schema R = (A, B, C, D, E,G) with a set of functional dependencies F {ABCD BC → DE B→ D D→ A}. (a) Show that R is not in BCNF using the functional dependency A → BCD. (b) Show that AG is a superkey for R (c) Compute a canonical cover Fc for the set of functional dependencies F. Show your work. (d) Give a 3NF decomposition of R based on the canonical cover found in (c). Show your work. (e) Give a BCNF decomposition of R using F. Show your work.

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Java: An Introduction to Problem Solving and Programming (7th Edition)

Chapter 7.1, Problem 1STQ Chapter 7.1, Problem 2STQ Chapter 7.1, Problem 3STQ Chapter 7.1, Problem 4STQ Chapter 7.1, Problem 5STQ Chapter 7.1, Problem 6STQ Chapter 7.2, Problem 7STQ Chapter 7.2, Problem 8STQ Chapter 7.2, Problem 9STQ Chapter 7.2, Problem 10STQ

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