/*
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 * and open the template in the editor.
 */
package lession4;

/**
 *
 * @author Diep.Tran
 */
public abstract class Animal {
    String name, foodType;

    public Animal() {
    }

    public Animal(String name, String foodType) {
        this.name = name;
        this.foodType = foodType;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getFoodType() {
        return foodType;
    }

    public void setFoodType(String foodType) {
        this.foodType = foodType;
    }
    
    public void running() {
        System.out.println("Animal is running");
    }
    
    public void testing() {
        System.out.println("Testing....");
    }
    
    //so sanh diem loi => phuong thuc truu tuong
    public abstract void showSound();
    
//    //phuong thuc rong.
//    public void showSound() {
//        //khi de cap toi Dong noi chung
//        //Dong se co am thanh
//        //Ko biet dc am thanh cua dong vat do la gi
//        //rong => ko chua code
//    }
}

/*
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 */
package lession4;

/**
 *
 * @author Diep.Tran
 */
public class Cat extends Animal{
    String color;

    public Cat() {
    }

    public Cat(String color, String name, String foodType) {
        super(name, foodType);
        this.color = color;
    }

    public String getColor() {
        return color;
    }

    public void setColor(String color) {
        this.color = color;
    }

    @Override
    public void running() {
        super.running();
        System.out.println("Cat is running");
//        testing();
        super.testing();
    }
    
    @Override
    public void showSound() {
        System.out.println("Meo meo ...");
    }
}

/*
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 */
package lession4;

/**
 *
 * @author Diep.Tran
 */
public class Dog extends Animal{
    @Override
    public void running() {
        System.out.println("Dog is running");
    }
    
    @Override
    public void showSound() {
        System.out.println("Go .. go ..");
    }
}

/*
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 */
package lession4;

/**
 *
 * @author Diep.Tran
 */
public class Main {
    public static void main(String[] args) {
        Student std = new Student();
        std.fullname = "Tran Van A";
//        std.age = -12;
        std.setAge(-12);
        //age >= 0 && age <= 200 => tai su duoc.
        
        System.out.println("Fullname : " + std.fullname);
        System.out.println("Age : " + std.age);
    }
}

/*
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 */
package lession4;

/**
 *
 * @author Diep.Tran
 */
public class Student {
    String fullname;//public, private, protected => protected
    int age;//age >= 0 & age <= 200

    public Student() {
    }

    public String getFullname() {
        return fullname;
    }

    public void setFullname(String fullname) {
        this.fullname = fullname;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        if(age >=0 && age <= 200) {
            this.age = age;
        } else {
            System.err.println("Khong dc cai dat tuoi < 0 hoac > 200");
        }
    }
}

/*
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 */
package lession4;

import java.util.ArrayList;

/**
 *
 * @author Diep.Tran
 */
public class Test {
    public static void main(String[] args) {
        //dang dung roi.
//        Animal animal = new Animal();
//        animal.running();
        
        Cat cat = new Cat();
        cat.running();
        cat.showSound();
        //lay vi du khac
        //Chu y : khai bao kieu du lieu la lop cha => khoi tao doi tuong >> khoi tao tu class parent hoac class child
        Animal abc = new Cat();
        //abc => no la doi tuong gi.
        //abc => no la doi tuong Cat
        abc.running();
        //dac tinh nay => dac tinh da hinh
        //compile => Animal
        //runtime => luc chuong trinh dang chay => Cat
        //Xet vai tro cua cac : ban be, thay - tro, con - cha, chau - ong, cha - con
        //van chinh la cac ban
        //Cat bbb = new Animal();//sai => khong khoi tao duoc
        //vay lam the nao chung ta co the su dung => goi dc cac phuong thuc va thuoc tinh
        //trong class Cat cua doi tuong abc
        //dc su dung trong TH => bai toan da hinh
        if(abc instanceof Cat) {
            ((Cat) abc).showSound();
        }
        //tai sao chung ta su dung toi da hinh trong lap trinh
        //viet chuong trinh quan am thanh cua dong
        ArrayList<Cat> catList = new ArrayList<>();
        
        //2 dong code nay
        Cat cat2 = new Cat();
        cat2.running();
        catList.add(cat2);
        
        //viet gom lai thanh 1 nhu sau
        catList.add(new Cat());
        
        ArrayList<Dog> dogList = new ArrayList<>();
        dogList.add(new Dog());
        dogList.add(new Dog());
        dogList.add(new Dog());
        dogList.add(new Dog());
        
        for (Dog dog : dogList) {
            dog.showSound();
        }
        
        for (Cat c : catList) {
            c.showSound();
        }
        //Chi muon dung ArrayList => quan ly tat ca cac dong vat (Cat, Dog, Tiger, Bear, Bee, ...)
        ArrayList<Animal> animalList = new ArrayList<>();
        
        animalList.add(new Cat());
        animalList.add(new Cat());
        animalList.add(new Dog());
        animalList.add(new Dog());
        animalList.add(new Cat());
        animalList.add(new Dog());
        animalList.add(new Dog());
        animalList.add(new Dog());
        
        for (Animal animal1 : animalList) {
//            animal1.showSound();
            animal1.running();
            if(animal1 instanceof Cat) {
                ((Cat) animal1).showSound();
            } else if(animal1 instanceof Dog) {
                ((Dog) animal1).showSound();
            }
        }
    }
}