Sunlo

Java Code of Shapes for Graphical User Interface: For Circle: import java.awt.*; import java.awt.geom.*; /**  * A circle that can be manipulated and that draws itself on a canvas.  *   * @author  Michael Kšlling and David J. Barnes  * @version 2011.07.31  */ public class Circle {     private int diameter;     private int xPosition;     private int yPosition;     private String color;     private boolean isVisible;          /**      * Create a new circle at default position with default color.      */     public Circle()     {         diameter = 68;         xPosition = 230;         yPosition = 90;         color = "blue";     }     /**      * Make...

DATE PROGRAM Date Class: public class Date { private int month; private int year; private int day; public int getMonth() { return month; } public void setMonth(int month) { this.month = month; } public int getYear() { return year; } public void setYear(int year) { this.year = year; } public int getDay() { return day; } public void setDay(int day) { this.day = day; } public void displayDate() { System.out.print(getMonth()+ "/" +getDay()+ "/" +getYear() ) ; } } Date Test Class: import java.util.Scanner; public class DateTest { public static void main (String args[]) { Scanner in=new Scanner(System.in); System.out.println("Enter the day"); int d=in.nextInt(); System.out.println("Enter the month "); int m=in.nextInt(); System.out.println("Enter the year "); int y=in.nextInt(); Date date=new Date(); date.setDay(d); date.setMonth(m); date...