#Test.java

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package aptech.gokisoft;

import aptech.SinhVien;

/**
 *
 * @author student
 */
public class Test {
    public static void main(String[] args) {
        System.out.println("Test create project...");
        SinhVien sv = new SinhVien();
        sv.fullname = "A";
//        sv.address = "Ha Noi";
//        sv.email = "a@gmail.com";
//        sv.rollno = "R001";
        System.out.println("Ten sinh vien: " + sv.fullname);
    }
}

#Student.java

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package aptech.model;

/**
 *
 * @author student
 */
public class Student {
    
}

#Citizen.java

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package aptech.oop;

/**
 *
 * @author student
 */
public class Citizen {
    String fullname, address;

    public Citizen() {
        System.out.println("c01");
    }

    public Citizen(String fullname, String address) {
        this.fullname = fullname;
        this.address = address;
        System.out.println("c02");
    }

    public String getFullname() {
        return fullname;
    }

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

    public String getAddress() {
        return address;
    }

    public void setAddress(String address) {
        this.address = address;
    }
    
    public void running() {
        System.out.println("Cong dan " + fullname + " dang chay");
    }
}

#Student.java

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package aptech.oop;

/**
 *
 * @author student
 */
public class Student extends Citizen{
    String rollno;

    public Student() {
        System.out.println("s01");
    }

    public Student(String rollno, String fullname, String address) {
        super(fullname, address);
        this.rollno = rollno;
        System.out.println("s02");
    }
    
    public String getRollno() {
        return rollno;
    }

    public void setRollno(String rollno) {
        this.rollno = rollno;
    }

    public void learning() {
        System.out.println("Cong dan dang hoc");
    }
}

#Test.java

/*
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package aptech.oop;

/**
 *
 * @author student
 */
public class Test {
    public static void main(String[] args) {
//        Citizen c = new Citizen("A", "Ha Noi");
//        Student std = new Student("ABC", "OKOK", "Nam Dinh");
//        
//        std.fullname = "KKKKK";
//        
//        c.running();
//        std.running();
        Student std = new Student();
        std.running();
    }
}

#Animal.java

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package aptech;

/**
 *
 * @author student
 */
public class Animal {
    String name, foodType;
    int age;

    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 int getAge() {
        return age;
    }

    public void setAge(int age) {
        if(age > 0) {
            this.age = age;
        } else {
            System.err.println("Tuoi > 0");
        }
    }
    
    
}

#LoopTest.java

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package aptech;

/**
 *
 * @author student
 */
public class LoopTest {
    public static void main(String[] args) {
        int i = 7;
        
//        while(i <= 6) {
//            System.out.println("i = " + i);
//            i+=2;
//        }
//        
//        i = 7;
//        do {
//            System.out.println("i = " + i);
//            i+=2;
//        } while(i<=6);
        
        i = 2;
        for (i = 2; i <= 6; i+=2) {
            System.out.println("i = " + i);
        }
        
        /*//tinh tong cac so tu 1 -> 10
        i = 1;
        int sum = 0;
        while(i<=10) {
            sum += i;
            i++;
        }
        System.out.println("sum = " + sum);
        
        //tinh tong cac so tu 1 -> 10 -> cac so chia het cho 3
        i = 1;
        sum = 0;
        while(i<=10) {
            if(i % 3  == 0) {
                sum += i;
            }
            i++;
        }
        
        // Cach 2:
        i = 1;
        sum = 0;
        while(i<=10) {
            if(i % 3 != 0) {
                i++;
                continue;
            }
            sum += i;
            i++;
        }
        System.out.println("sum = " + sum);
        
        //tinh tong cac so tu 1 -> 10 -> dung tinh khi i % 7 == 0
        i = 1;
        sum = 0;
        while(i<=10) {
            if(i % 7  == 0) {
                break;
            }
            sum+=i;
            i++;
        }
        System.out.println("sum = " + sum);*/
    }
}

#Phan1.java

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package aptech;

import java.util.Scanner;

/**
 *
 * @author student
 */
public class Phan1 {
    static enum STATUS {BAT_DIEN, TAT_DIEN};

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
        System.out.println("Hello World!!!");
        String name, address;
        int age;
        // Nhap thong tin sinh vien
        // Khai bao bien nhap tu ban phim
        Scanner input = new Scanner(System.in);
        
        //Nhap thong tin
        System.out.println("Nhap ten: ");
        name = input.nextLine();
        
        System.out.println("Nhap tuoi: ");
        age = Integer.parseInt(input.nextLine());//float, double, ...
        
        System.out.println("Nhap dia chi: ");
        address = input.nextLine();
        
        //msg => Thanh nien => age >= 18
        //msg => Chua du 18 tuoi => age < 18
        String msg = (age >= 18)?"Thanh Nien":"Chua du 18 tuoi";
        if(age >= 18) {
            msg = "Thanh Nien";
        } else {
            msg = "Chua du 18 tuoi";
        }
        //switch: so nguyen, ky tu, String, enum.
        System.out.println("msg >> " + msg);
        System.out.println("Ten: " + name + ", dia chi: " + address + ", tuoi : " + age);
        
        //Mo phong ve bong dien
        String type = "ABC";
//        int status = 0;//0 -> OFF => TAT, 1 => ON => BAT & SANG
        STATUS status = STATUS.BAT_DIEN;
        System.out.println("status: " + status);
        
        switch(status) {
            case BAT_DIEN:
                
                break;
            case TAT_DIEN:
                
                break;
            default:
                
                break;
        }
    }
    
}

#SinhVien.java

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package aptech;

/**
 *
 * @author student
 */
public class SinhVien {
    public String fullname;
    protected String address;
    private String email;
    String rollno;
    
    public SinhVien() {
        System.out.println("Khoi tao ham tao mac dinh");
        //code business logic => OK
    }
    
    public SinhVien(String fname) {
        fullname = fname;
    }

    public SinhVien(String fullname, String address, String email, String rollno) {
        this.fullname = fullname;
        this.address = address;
        this.email = email;
        this.rollno = rollno;
    }

    public SinhVien(String fullname, String rollno) {
        this.fullname = fullname;
        this.rollno = rollno;
    }
    
    public void running() {
        System.out.println("Sinh vien " + fullname + " dang chay bo");
    }
    
    public void learning() {
        System.out.println("Sinh vien " + fullname + " dang hoc");
    }
    
    public void learning(String subject) {
        System.out.println("Sinh vien " + fullname + " dang hoc " + subject);
    }
}

#Test.java

/*
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package aptech;

/**
 *
 * @author student
 */
public class Test {
    public static void main(String[] args) {
        SinhVien sv = new SinhVien();
        sv.fullname = "A";
        sv.address = "Ha Noi";
//        sv.email = "a@gmail.com";
        sv.rollno = "R001";
        System.out.println("Ten sinh vien: " + sv.fullname);
        
        SinhVien sv01 = new SinhVien("ABC");
        System.out.println("Ten sinh vien: " + sv01.fullname);
        sv01.learning();
        
        SinhVien sv02 = new SinhVien("TRAN VAN A", "r001");
        System.out.println("Ten: " + sv02.fullname + ", ma sinh vien: " + sv02.rollno);
        sv02.learning();
        sv02.learning("HTML/CSS/JS");
        
        Animal animal = new Animal("Dog", "ABC");
        animal.name = "Dog";
        animal.setName("Dog");
        animal.setAge(-5);
        System.out.println(animal.name);
    }
}