/*
 * Example of an abstract class
 * An abstract class can have instance variables and methods of both static and normal nature
 * Can have a constructur, but that cannot be called directly, as abstract classes cannot be instantiated
 * It should contain one abstract method (which is just method signature, to be implemented later in child classes extending it
 *
*/
public abstract class HealthAbstract {

    public HealthAbstract() {
        System.debug('Welcome to the abstract class of Health');
    }

    public Integer weight;

    //define a method to set current weight of different people (different classes in this example)
    public void setWeight(Integer wt) {
        weight = wt;
    }

    //define a method to get the weight from other classes
    public Integer getWeight() {
        if(weight != null) {
            return weight;
        } else {
            return null;
        }
    }

    //define an abstract method which needs to be implemented in all child classes extending this
    public abstract String workoutIntensity(Integer BicepsSize, Integer ChestSize);

}