CoolBeans.java #1

package coolbeans;

import java.util.ArrayList;

import coolbeans.Bean;

public class CoolBeans {

    public static boolean weCool(ArrayList<Bean> beans) {
        for (Bean bean : beans) {
            if (!bean.isCool()) {
                System.out.println("Not cool.");
                return false;
            }
        }
        System.out.println("We cool.");
        return true;
    }

    public static void main(String[] args) {
        ArrayList<Bean> beans = new ArrayList<>();
        beans.add(new Bean(true));
        beans.add(new Bean(false));
        weCool(beans);

        beans.get(1).beCool(true);
        weCool(beans);
    }

}