10일 차 상속 중간점검

class People {

public String name;

public int age;

}

class Employee extends People{

public String grade;

@Override

public String toString() {

return "Employee [grade=" + grade + ", name=" + name + ", age=" + age + "]";

}

}

class Student extends People{

public int score;

@Override

public String toString() {

return "Student [score=" + score + ", name=" + name + ", age=" + age + "]";

}

}

public class Test3 {

public static void main(String[] args) {

Student s = new Student();

s.name = "박성욱";

s.age = 16;

s.score = 90;

Employee e = new Employee();

e.name = "박성욱";

e.age = 26;

e.grade = "사원";

System.out.println(s);

System.out.println(e);

}

}

People 클래스

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class Animal {

public String name;

public String howling;

public void Howling() {

}

}

class MilkCow extends Animal {

public int Milk;

public void MilkInjection(int injec) {

this.Milk -= injec;

}

public void Howling() {

howling = "우오오오모ㅗ오옿오홍";

}

@Override

public String toString() {

return "MilkCow [Milk=" + Milk + "L" + ", name=" + name + ", howling=" + howling + "]";

}

}

class Chlorine extends Animal {

public int weight;

public void Howling() {

howling = "메에에에에에에";

}

@Override

public String toString() {

return "Chlorine [weight=" + weight + "kg" + ", name=" + name + ", howling=" + howling + "]";

}

}

public class Test4 {

public static void main(String[] args) {

// TODO Auto-generated method stub

MilkCow m = new MilkCow();

m.Howling();

m.Milk = 100;

System.out.println("젖소가 하루 짤 수 있는 젖의 양은 " + m.Milk + "L" + "\n\n");

m.MilkInjection(20);

m.name = "1번 젖소";

Chlorine c = new Chlorine();

c.Howling();

c.weight = 40;

c.name = "1번 염소";

System.out.println(m);

System.out.println(c);

}

}

Animal 클래스