Sky

package weather;

import java.util.ArrayList;

public class Sky {
	// a private ArrayList of type Cloud named clouds ****
	private ArrayList<Cloud> clouds;
	// a constructor that creates the clouds array list with
	// initial capacity of 100 ****
	public Sky() {
		clouds = new ArrayList<Cloud>(100);

	}
	public boolean add(Cloud c){
		clouds.add(c);
		return true;
	}
	public float getMeanHeight(){
		float meanHeight=0;
		for(int i=0;i<=2;i++)
		{
			meanHeight=meanHeight+clouds.get(i).getHeight();
		}
		meanHeight=meanHeight/100;
		return meanHeight;
	}
	public static void main(String[] args) {
		Cloud strat = new Cloud(100, 1000);
		if (!strat.rain().startsWith("It is raining"))
			System.out.println("Bad StratusCloud::rain");
		Cloud cumu = new Cloud(200, 2000);
		if (!cumu.rain().startsWith("It is raining"))
			System.out.println("Bad CumulusCloud::rain");
		Cloud cirr = new Cloud(300, 3000);
		if (!cirr.rain().startsWith("I cannot make"));
		System.out.println("Bad CirrusCloud::rain");
		Sky sky = new Sky();
		sky.add(strat);
		sky.add(cumu);
		sky.add(cirr);
		float mean = sky.getMeanHeight();
		if (mean < 1799 || mean > 1801)
			System.out.println("Bad mean height: expected 1800, saw " + mean);
		System.out.println("Everything (else) is ok");
	}
}