class Employee {
        String  name;
        float   salary;        
        public Employee(String name, float salary) {
                this.name       = name;
                this.salary     = salary;
        }
        public String getName() {
                return name;
        }
        public float getSalary() {
                return salary;
        }
}
class Boss extends Employee {        
        float bonus;
        public Boss(String name, float salary) {
                super(name, salary);
                bonus = 0;
        }        
        public float getBonus() {
                return bonus;
        }
        public void setBonus(float bonus) {
                this.bonus = bonus;
        }
}
public class Test {
        public static void main(String[] args) {
                Boss boss;
                List<Employee> employees = new LinkedList<Employee>();                
                employees.add(new Employee("Alice", 20));
                employees.add(boss = new Boss("Bob", 1000));
                boss.setBonus(100);
        }
}