CS106A Assignment 3.2

Random Circles

import acm.graphics.*;
import acm.program.*;
import acm.util.*;

public class randomCircles extends GraphicsProgram {
	// specifies number of circles
	private static final int NCIRCLES = 10;
	
	// specifies minimum radius
	private static final int RMIN = 5;
	
	// specifies maximum radius
	private static final int RMAX = 50;
	
	public void run() {
		
		// creates n = NCIRCLES of random size, position and colour, wholly within the graphics window
		for (int i = 0; i < NCIRCLES; i++) {
			int rRandom = rgen.nextInt(RMIN, RMAX);
			int x = rgen.nextInt(0, getWidth() - rRandom*2);
			int y = rgen.nextInt(0, getHeight() - rRandom*2);
			GOval circle = new GOval (x, y, rRandom*2, rRandom*2);
			circle.setFilled(true);
			circle.setFillColor(rgen.nextColor());
			add(circle);
		}
	}
	
	// creates an instance of type RandomGenerator called rgen
	private RandomGenerator rgen = RandomGenerator.getInstance();
}