Constructors, ex01, slide 49

/*
 * Constructors, Exercise 01, slide no 49
 */

/*
 * Adult class
 ******************************************************/
public class Adult {
    // final class properties
    private static final int NAME_MIN_CHARS = 2; // minimum chars in adult name
    private static final String DEFAULT_NAME = "Missing Name"; // default adult
                                                                // name
    private static final int MINIMUM_HEIGHT = 40; // minimum adult height in cm
    private static final String DEFAULT_PROFISSIN = ""; // default value
                                                        // for adult
                                                        // profession

    // define adult object properties and initialize to valid values
    private String name = Adult.DEFAULT_NAME; // adult name
    private int height = Adult.MINIMUM_HEIGHT; // adult height in cm
    private String profession = Adult.DEFAULT_PROFISSIN; // adult profession or
                                                            // "Unknown"

    // constructors
    public Adult(String name, int height, String profession) {
        super();
        this.setName(name);
        this.setHeight(height);
        this.setProfession(profession);
    }

    public Adult(String name, int height) {
        this(name, height, Adult.DEFAULT_PROFISSIN);
    }

    public Adult(Adult sourceAdult) {
        this.name = sourceAdult.name;
        this.height = sourceAdult.height;
        this.profession = sourceAdult.profession;
    }

    // name getter and setter
    public String getName() {
        return this.name;
    }

    public boolean setName(String name) {
        // if argument is not valid
        if (name.length() < Adult.NAME_MIN_CHARS) {
            return false;
        }
        this.name = name;
        return true;
    }

    // height getter and setter
    public int getHeight() {
        return this.height;
    }

    public boolean setHeight(int height) {
        if (height < Adult.MINIMUM_HEIGHT) {
            return false;
        }
        this.height = height;
        return true;
    }

    // profession getter and setter
    public String getProfession() {
        return profession;
    }

    public boolean setProfession(String profession) {
        this.profession = profession.trim().length() == 0 ? Adult.DEFAULT_PROFISSIN
                : profession;
        return true;
    }

    @Override
    public String toString() {
        String professionString = this.profession.length() > 0 ? String.format(
                ", profession=%s", this.profession) : "";

        return String.format("Adult [name=%s, height=%d%s]", this.name,
                this.height, professionString);

    }
}


/*
 * AdultTester class - main()
 ******************************************************/

public class AdultTester {
    public static void main(String[] args) {
        Adult p1 = new Adult("Mohamad", 180, "Teacher");
        Adult p2 = new Adult("tamar", 150);
        Adult p3 = new Adult(p1);

        System.out.println("person 1: " + p1.toString());
        System.out.println("person 2: " + p2.toString());
        System.out.println("person 3: " + p3.toString());

        // update p1 profession
        if (p1.setProfession("employee")) {
            System.out.println("Success: p1 proession updated.");
        } else {
            System.out.println("Error: failed to update p1 profession!");
        }

        System.out.println("person 1: " + p1.toString());
        System.out.println("person 2: " + p2.toString());
        System.out.println("person 3: " + p3.toString());
    }
}