Question

I have to create a java graphics program which will draw 10 rectangles and 10 ellipses on the screen. These shapes are to be stored in an arrayList. I have to do this using 6 different class files. I am not sure whether I successfully created an ellipse in the Oval Class & also need help completing the print Class.

I need someone to check whether my Oval Class is correct (it successfully creates an ellipse with x, y, width, height, and color). I also need someone to complete the Print Class, which will print 10 rectangles and 10 ovals to the screen.

This is what I have done so far -

//Location Class (gets the x and y positions)

public class Location{
   private int x;
   private int y;

   public Location(int x, int y){
       this.x = x;
       this.y = y;
   }
   public int getX(){
       return x;
   }
   public int getY(){
       return y;
   }
}

//Dimension Class (gets the width and height)

public class Dimension{
   private int width;
   private int height;

   public Dimension(int width, int height){
       this.width = width;
       this.height = height;
   }
   public int getWidth(){
       return width;
   }
   public int getHeight(){
       return height;
   }
}

//Shape Class (super class for the shapes)

import java.awt.*;

public class Shape{
   Location loc;
   Dimension dim;
   Color c;

   public Shape(Location loc, Dimension dim, Color c){
       this.loc = loc;
       this.dim = dim;
       this.c = c;
   }
   public Location getLoc(){
       return loc;
   }
   public Dimension getDim(){
       return dim;
   }
   public Color getColor(){
       return c;
   }
}

//Rectangle Class (creates and returns a rectangle)

import java.awt.*;

public class Rectangle extends Shape{

   public Rectangle(Location loc, Dimension dim, Color c){
       super(loc, dim, c);
   }
   public Rectangle getRectangle(){
       Rectangle rec = new Rectangle(loc, dim, c);
       return rec;
   }
}

//Oval Class (creates and returns an ellipse)

import java.awt.*;
import java.awt.geom.Ellipse2D;

public class Oval extends Shape{

   public Oval(Location loc, Dimension dim, Color c){
           super(loc, dim, c);
   }
   public Ellipse2D.Double getEllipse(){
       Ellipse2D.Double ell = new Ellipse2D.Double(super.getLoc().getX(), super.getLoc().getX(), super.getDim().getWidth(),super.getDim().getHeight());

       return ell;
   }
}

//print Class (fills the arrayList with the shapes and displays it to the screen)

import javax.swing.*;
import java.awt.*;
import java.util.ArrayList;

public class printClass extends JComponent{
   JFrame frame = new JFrame();
   ArrayList<Shape> shapes = new ArrayList<Shape>();
   //Constructor
   public printClass(){
       //Go through and set all the critaria for the frame & fill the arrayList
       //in this contructor. (There should be 10 rectangles and 10 ellipses)
   }
  
   //In the paintComponent, display the information to the screen
   public void paintComponent(Graphics g)
   public static void main(String[] args){
      
       printClass pri = new printClass();
   }
}

Answer 1

Please find the answer below.
Please do comments in case of any issue. Also, don't forget to rate the question. Thank You.

Dimension.java

package shapes;
//Dimension Class (gets the width and height)

public class Dimension{
   private int width;
   private int height;

   public Dimension(int width, int height){
       this.width = width;
       this.height = height;
   }
   public int getWidth(){
       return width;
   }
   public int getHeight(){
       return height;
   }
}

Location.java

package shapes;
//Location Class (gets the x and y positions)

public class Location{
   private int x;
   private int y;

   public Location(int x, int y){
       this.x = x;
       this.y = y;
   }
   public int getX(){
       return x;
   }
   public int getY(){
       return y;
   }
}

Shape.java

package shapes;

//Shape Class (super class for the shapes)

import java.awt.*;

public class Shape{
   Location loc;
   Dimension dim;
   Color c;

   public Shape(Location loc, Dimension dim, Color c){
       this.loc = loc;
       this.dim = dim;
       this.c = c;
   }
   public Location getLoc(){
       return loc;
   }
   public Dimension getDim(){
       return dim;
   }
   public Color getColor(){
       return c;
   }
}

Rectangle.java

package shapes;
import java.awt.*;

//Rectangle Class (creates and returns a rectangle)

public class Rectangle extends Shape{

   public Rectangle(Location loc, Dimension dim, Color c){
       super(loc, dim, c);
   }
   public Rectangle getRectangle(){
       Rectangle rec = new Rectangle(loc, dim, c);
       return rec;
   }
}

Oval.java

package shapes;

//Oval Class (creates and returns an ellipse)

import java.awt.*;
import java.awt.geom.Ellipse2D;

public class Oval extends Shape{

   public Oval(Location loc, Dimension dim, Color c){
       super(loc, dim, c);
   }
   public Ellipse2D.Double getEllipse(){
       Ellipse2D.Double ell = new Ellipse2D.Double(super.getLoc().getX(), super.getLoc().getX(), super.getDim().getWidth(),super.getDim().getHeight());

       return ell;
   }
}

printClass.java

package shapes;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Graphics;
import java.util.ArrayList;
import java.util.Random;

//print Class (fills the arrayList with the shapes and displays it to the screen)
import javax.swing.JComponent;
import javax.swing.JFrame;

public class printClass extends JComponent{
   JFrame frame = new JFrame();
   ArrayList<Shape> shapes = new ArrayList<Shape>();
   //Constructor
   public printClass(){
       //add 10 rectangles 10 circles
       Random rand = new Random();
       for(int i=0;i<10;i++){
           shapes.add(new Rectangle(new Location(rand.nextInt(700), rand.nextInt(700)),
                   new Dimension(rand.nextInt(200)+10, rand.nextInt(200)+10),
                   new Color(rand.nextInt(255),
                           rand.nextInt(255),
                           rand.nextInt(255))));
       }
       for(int i=0;i<10;i++){
           shapes.add(new Oval(new Location(rand.nextInt(700), rand.nextInt(700)),
                   new Dimension(rand.nextInt(200)+10, rand.nextInt(200)+10),
                   new Color(rand.nextInt(255),
                           rand.nextInt(255),
                           rand.nextInt(255))));
       }
   }

   //In the paintComponent, display the information to the screen
   public void paintComponent(Graphics g){
       int i;
       for (i=0;i<10;i++){
           Shape shape = shapes.get(i);
           g.setColor(shape.getColor());
           g.fillRect(shape.getLoc().getX(),
                   shape.getLoc().getY(),
                   shape.getDim().getWidth(),
                   shape.getDim().getHeight());
       }
       for (i=10;i<20;i++){
           Shape shape = shapes.get(i);
           g.setColor(shape.getColor());
           g.fillOval(shape.getLoc().getX(),
                   shape.getLoc().getY(),
                   shape.getDim().getWidth(),
                   shape.getDim().getHeight());
       }
   }
   public static void main(String[] args){
       printClass pri = new printClass();
       JFrame app = new JFrame("Shapes");
       app.add(pri, BorderLayout.CENTER);
       app.setSize(1000, 1000);
       app.setLocationRelativeTo(null);
       app.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
       app.setVisible(true);
   }
}

output

Shapes X Ja } pu pu