#Vehicle.java

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package lesson06;

/**
 *
 * @author Diep.Tran
 */
public class Vehicle implements IRunning{
    @Override
    public void running() {
        System.out.println("Vehicle is running");
    }
}

#Tiger.java

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package lesson06;

/**
 *
 * @author Diep.Tran
 */
public class Tiger extends Animal{

    @Override
    public void running() {
        System.out.println("Tiger is running");
    }
    
}

#Testing.java

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package lesson06;

import java.util.ArrayList;

/**
 *
 * @author Diep.Tran
 */
public class Testing {
    public static void main(String[] args) {
        //Chuong trinh quan Animal, Tiger -> Animal, Cat -> Animal
        //Student
        //Vehicle
        //Class Object -> Se gom 1 phuong thuc: running() -> hien thi 1 message
        //Phan 1: Thiet ke theo yeu cau tren
        //Phan 2: Tao 3 mang -> sinh vien, xe co, dong vat
        ArrayList<Student> students = new ArrayList<>();
        //Them sinh vien vao mang tren
        students.add(new Student());
        students.add(new Student());
        
        for (Student student : students) {
            student.running();
        }
        
        ArrayList<Vehicle> vehicles = new ArrayList<>();
        vehicles.add(new Vehicle());
        for (Vehicle vehicle : vehicles) {
            vehicle.running();
        }
        
        ArrayList<Animal> animals = new ArrayList<>();
        animals.add(new Tiger());
        animals.add(new Tiger());
        animals.add(new Cat());
        
        for (Animal animal : animals) {
            animal.running();
        }
        
        //Yeu cau: Tao 1 mang -> Quan ly Tiger, Cat, Student, Vehicle
        //Interface -> Class -> nhom cac hanh dong chung cua
        //cac loai Class Object khac nhau
        ArrayList<IRunning> list = new ArrayList<>();
        list.add(new Student());
        list.add(new Tiger());
        list.add(new Cat());
        list.add(new Vehicle());
        
        for (IRunning r : list) {
            r.running();
        }
        
        //1. Interface la gi???
        //2. Bien trong interface
//        IRunning.x = 100;
        System.out.println("x = " + IRunning.x);
        //3. Interface co ke thua dc khong?
        
        //Co cay hoi j cho interface
    }
}

#Test2.java

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package lesson06;

/**
 *
 * @author Diep.Tran
 */
public class Test2 {
    public static void main(String[] args) {
        A a = new A();
        System.out.println("x = " + a.x);
        
        B b = new B();
        System.out.println("x = " + b.x);
        
        A ab = new B();
        System.out.println("x = " + ab.x);
    }
}

#Student.java

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package lesson06;

/**
 *
 * @author Diep.Tran
 */
public class Student implements IRunning{
    @Override
    public void running() {
        System.out.println("Student is running");
    }
}

#Main.java

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package lesson06;

import javax.xml.transform.Source;

/**
 *
 * @author Diep.Tran
 */
public class Main {
    //Tim hieu static (bien + methods)
    //Interface trong OOP
    //Class Object | Class -> Main, Config, ...
    //Object -> Main m = new Main() -> m : Object
    public static void main(String[] args) {
        System.out.println("Host: " + Config.HOST);
        
        Config config = new Config();
        System.out.println(config.x);
        
        config.showMsg("12312312");
        config.testing("23132"); //warning -> sai ban chat -> chay binh thuong
        
        Config.testing("sdsadsad");
    }
}

#IStop.java

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package lesson06;

/**
 *
 * @author Diep.Tran
 */
public interface IStop {
    void stop();
    void stopping();
}

#IRunning.java

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package lesson06;

/**
 *
 * @author Diep.Tran
 */
public interface IRunning {
    int x = 10;//public final
    
    void running();
}

#IAction.java

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package lesson06;

/**
 *
 * @author Diep.Tran
 */
public interface IAction extends IRunning, IStop{
    void sleeping();
}

#Config.java

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package lesson06;

/**
 *
 * @author Diep.Tran
 */
public class Config {
    public static String HOST = "localhost";
    public static String DATABASE = "C2108L";
    public static String USERNAME = "root";
    public static String PASSWORD = "";
    
    public int x = 10;
    
    public void showMsg(String msg) {
        System.out.println("Thong tin: " + msg);
    }
    
    public static void testing(String msg) {
        System.out.println("OKOK > " + msg);
    }
}

#Cat.java

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package lesson06;

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

    @Override
    public void running() {
        System.out.println("Cat is running");
    }
    
}

#B.java

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package lesson06;

/**
 *
 * @author Diep.Tran
 */
public class B extends A{
    public int x = 15;
}

#Animal.java

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package lesson06;

/**
 *
 * @author Diep.Tran
 */
public class Animal implements IRunning{
    @Override
    public void running() {
        System.out.println("Animal is running");
    }
}

#A.java

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package lesson06;

/**
 *
 * @author Diep.Tran
 */
public class A {
    public int x = 10;
}