import java.awt.Color;

import java.awt.Graphics;

import java.awt.Graphics2D;

import java.awt.RenderingHints;

import java.awt.geom.Ellipse2D;

import java.util.Random;

import javax.swing.JFrame;

import javax.swing.JPanel;

@SuppressWarnings("serial")

/**

* Re-locating position of x,y

* (0,0) in C-application= (0,1000) in java application

* (x,y) in C-application= (x, 1000-y) in java application.

*/

public class Game2 extends JPanel {

public Color abc(){

// Will produce a random colour with more red in it (usually "pink-ish")

Random rand = new Random();

int R = (int)(Math.random()*256);

int G = (int)(Math.random()*256);

int B= (int)(Math.random()*256);

Color randomColor = new Color(R, G, B); //random color, but can be bright or dull

return randomColor;

}

@Override

public void paint(Graphics g) {

Graphics2D g2d = (Graphics2D) g;

g2d.setColor(abc());//Color.RED

/**

* We receive balls coordinate at the center

*/

//g2d.fillOval(0, 0, 40, 40);

/**

* Added balls

*/

g2d.fillOval(150, 320, 40, 40);

g2d.fillOval(650, 180, 40, 40);

g2d.fillOval(750, 200, 40, 40);

g2d.fillOval(800, 330, 40, 40);

g2d.fillOval(900, 274, 40, 40);

/**

* Coordinate:(900,900)= (900,1000-900)

* 900-20; 100-20

*/

g2d.setColor(abc());

g2d.drawOval(900-20, 1000-900-20, 40, 40);

g2d.setColor(abc());

//coordinates (500,300) and (100,750)

g2d.drawLine(500, 1000-300, 1000, 1000-750);

g2d.setColor(abc());//Color.CYAN

//coordinates (20,750) and (500,100)

g2d.drawLine(20, 1000-750, 500, 1000-100);

}

public static void main(String[] args) {

JFrame frame = new JFrame("My GUI");

frame.add(new Game2());

frame.setSize(1000, 1000);

frame.setVisible(true);

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

}

}