09 Inheritance Student Lesson

• Part 1 Homework
• Part 2 Homework

Part 1 Homework

public class WorldCup {
    private char group;

    public WorldCup(char group) {
        this.group = group;
    }

    public char getGroup() {
        return group;
    }

    public class Brazil extends WorldCup {
        private String name;
        private String continent;
        private String jerseyColor;

        public Brazil(char group, String name, String continent, String jerseyColor) {
            super(group);
            this.name = name;
            this.continent = continent;
            this.jerseyColor = jerseyColor;
        }

        public String getName() {
            return name;
        }

        @Override
        public String toString() {
            return name + ": {" + "group: " + group + " continent: " + continent + ", jersey color: " + jerseyColor
                    + "}";
        }

    }

    public class Argentina extends WorldCup {
        private String name;
        private String continent;
        private String jerseyColor;

        public Argentina(char group, String name, String continent, String jerseyColor) {
            super(group);
            this.name = name;
            this.continent = continent;
            this.jerseyColor = jerseyColor;
        }

        public String getName() {
            return name;
        }

        @Override
        public String toString() {
            return name + ": {" + "group: " + group + " continent: " + continent + ", jersey color: " + jerseyColor
                    + "}";
        }

    }

    public class Croatia extends WorldCup {
        private String name;
        private String continent;
        private String jerseyColor;

        public Croatia(char group, String name, String continent, String jerseyColor) {
            super(group);
            this.name = name;
            this.continent = continent;
            this.jerseyColor = jerseyColor;
        }

        public String getName() {
            return name;
        }

        @Override
        public String toString() {
            return name + ": {" + "group: " + group + " continent: " + continent + ", jersey color: " + jerseyColor
                    + "}";
        }

    }

    public class Morocco extends WorldCup {
        private String name;
        private String continent;
        private String jerseyColor;

        public Morocco(char group, String name, String continent, String jerseyColor) {
            super(group);
            this.name = name;
            this.continent = continent;
            this.jerseyColor = jerseyColor;
        }

        public String getName() {
            return name;
        }

        @Override
        public String toString() {
            return name + ": {" + "group: " + group + " continent: " + continent + ", jersey color: " + jerseyColor
                    + "}";
        }

    }

    public class France extends WorldCup {
        private String name;
        private String continent;
        private String jerseyColor;

        public France(char group, String name, String continent, String jerseyColor) {
            super(group);
            this.name = name;
            this.continent = continent;
            this.jerseyColor = jerseyColor;
        }

        public String getName() {
            return name;
        }

        @Override
        public String toString() {
            return name + ": {" + "group: " + group + " continent: " + continent + ", jersey color: " + jerseyColor
                    + "}";
        }

    }

    public static void main(String[] args) {
        WorldCup Qatar = new WorldCup('A');
        Brazil brazilTeam = Qatar.new Brazil('F', "Brazil", "South America", "Yellow");
        Argentina argentinaTeam = Qatar.new Argentina('C', "Argentina", "South America", "Blue");
        Croatia croatiaTeam = Qatar.new Croatia('F', "Croatia", "Europe", "White");
        Morocco moroccoTeam = Qatar.new Morocco('F', "Morocco", "Africa", "Red");
        France franceTeam = Qatar.new France('D', "France", "Europe", "Blue");
        System.out.println(brazilTeam);
        System.out.println(argentinaTeam);
        System.out.println(croatiaTeam);
        System.out.println(moroccoTeam);
        System.out.println(franceTeam);

    }

}

WorldCup.main(null);

Brazil: {group: A continent: South America, jersey color: Yellow}
Argentina: {group: A continent: South America, jersey color: Blue}
Croatia: {group: A continent: Europe, jersey color: White}
Morocco: {group: A continent: Africa, jersey color: Red}
France: {group: A continent: Europe, jersey color: Blue}

Part 2 Homework

public class Person {
   private String name;
   private String birthday;
   private int age;

   public Person(String name, String birthday, int age) {
      this.name = name;
      this.birthday = birthday;
      this.age = age;
   }

   public String getName() {
      return name;
   }

   public int getAge() {
      return age;
   }

   public static void main(String[] args) {
      Person Bob = new Person("Bob", "Jan 1,2000", 22);
      Student Ted = Bob.new Student("Ted", "Jan 2, 2010", 12, 11, 4.0, 5);
      Teacher MsSmith = Bob.new Teacher("Ms. Smith", "Jan 5, 1999", 23, 4, "Computer Science");
      System.out.println(Ted);
      System.out.println(MsSmith);
   }

   public class Student extends Person {
      private int grade;
      private double gpa;
      private int numFriends;

      public Student(String name, String birthday, int age, int grade, double gpa, int numFriends) {
         super(name, birthday, age);
         this.grade = grade;
         this.gpa = gpa;
         this.numFriends = numFriends;
      }

      public int getGrade() {
         return grade;
      }

      public int getNumFriends() {
         return numFriends;
      }

      @Override
      public String toString() {
         return name + ": {" + "gpa: " + gpa + " grade: " + grade + "}";
      }
   }

   public class Teacher extends Person {
      private int classes;
      private String subject;

    public Teacher (String name, String birthday, int age, int classes, String subject) {
       super(name, birthday, age);
       this.classes = classes;
       this.subject = subject;
    }

      public int getNumClasses() {
         return classes;
      }

      public String getSubject() {
         return subject;
      }

      @Override
      public String toString() {
         return name + ": {" + "number of classes: " + classes + " subject: " + subject + "}";
      }
   }
}
Person.main(null);

Bob: {gpa: 4.0 grade: 11}
Bob: {number of classes: 4 subject: Computer Science}