HomeWork6 (java.lang.Object)

BaseOfGroups.java

import java.io.Serializable;
import java.util.Arrays;


/**
 *
 * @author kamaz
 */
public class BaseOfGroups implements Serializable {
    
    private static final long serialVersionUID = 1L;
    
    private Group[] groups = new Group[3];

    public BaseOfGroups() {
        super();
    }

    public Group[] getGroups() {
        return groups;
    }

    public void setGroups(Group[] groups) {
        this.groups = groups;
    }
    
    public void setGroup(Group gp) {
        for (int i = 0; i < groups.length; i += 1) {
            if (groups[i] == null) {
                groups[i] = gp;
            break;
            }
        }
    }

    @Override
    public String toString() {
        return "BaseOfGroups{" + "groups = " + Arrays.toString(groups) + '}';
    }

}

Group.java

import java.io.Serializable;
import java.util.Arrays;

/**
 *
 * @author kamaz
 */
public class Group implements Serializable {
    
    private int groupMarker;
    private Students[] student = new Students[3];

    public Group() {
        super();
    }

    public Group(int groupMarker) {
        this.groupMarker = groupMarker;
    }

    public int getGroupMarker() {
        return groupMarker;
    }

    public void setGroupMarker(int groupMarker) {
        this.groupMarker = groupMarker;
    }

    public Students[] getStudents() {
        return student;
    }

    public void setStudents(Students[] student) {
        this.student = student;
    }

    @Override
    public String toString() {
        return "Group{" + "groupMarker = " + groupMarker + Arrays.toString(student) + '}' + "\n";
    }
    
    public void setStudent(Students std, int number) {
        for (int i = 0; i < student.length; i += 1) {
            if (student[i] == null && number == groupMarker) {
                student[i] = std;
                break;
            }
        }
    }
    
}

Human.java

import java.io.Serializable;

/**
 *
 * @author kamaz
 */
public class Human implements Serializable {
    
    private int age;
    private String sex;
    private String name;
    private String surname;

    public Human(int age, String sex, String name, String surname) {
        this.age = age;
        this.sex = sex;
        this.name = name;
        this.surname = surname;
    }

    public Human() {
        super();
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public String getSex() {
        return sex;
    }

    public void setSex(String sex) {
        this.sex = sex;
    }

    public String getName() {
        return name;
    }

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

    public String getSurname() {
        return surname;
    }

    public void setSurname(String surname) {
        this.surname = surname;
    }

    @Override
    public String toString() {
        return "Human{" + "age = " + age + ", sex = " + sex + ", name = " + name + ", surname = " + surname + '}';
    }
    
}

Main.java

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.Scanner;

/**
 *
 * @author kamaz
 */
public class Main {
    
    public static void main(String[] args) {
        
        Scanner sc = new Scanner(System.in);
        
        Group a = new Group(1);
        Students stOne = new Students(25, "man", "Roman", "Kryvobok");
        Students stTwo = new Students(24, "man", "Ivan", "Korobka");
        Students stThree = new Students(23, "woman", "Inna", "Vysockaia");
        
        a.setStudent(stOne, 1);
        a.setStudent(stTwo, 1);
        a.setStudent(stThree, 1);
        System.out.println(a);
        
        Group b = new Group(2);
        Students stdOne = new Students(30, "man", "Nikolai", "Krymskyi");
        Students stdTwo = new Students(18, "woman", "Olga", "Berezova");
        Students stdThree = new Students(36, "man", "Ruslan", "Ignatenko");
        
        b.setStudent(stdOne, 2);
        b.setStudent(stdTwo, 2);
        b.setStudent(stdThree, 2);
        System.out.println(b);
        
        Group c = new Group(3);
        Students stdnOne = new Students(55, "woman", "Maria", "Kulishevskaia");
        Students stdnTwo = new Students(60, "man", "Andrei", "Vostochnyi");
        Students stdnThree = new Students(71, "man", "Vladislav", "Korotenko");
        
        c.setStudent(stdnOne, 3);
        c.setStudent(stdnTwo, 3);
        c.setStudent(stdnThree, 3);
        System.out.println(c);
        
        BaseOfGroups bog = new BaseOfGroups();
        bog.setGroup(a);
        bog.setGroup(b);
        bog.setGroup(c);
        System.out.println("bog = " + bog);
        
        System.out.println();
        System.out.println("Plese choose WRITE or READ");
        String check = sc.nextLine();
        System.out.println();
        
        if (check.equals("write")) {
            try(ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream("a.txt"))) {
                oos.writeObject(bog);
                System.out.println("Successful");
            } catch(Exception e) {
                e.printStackTrace();
                System.out.println("ERROR one");
            }
        }
        
        if (check.equals("read")) {
            BaseOfGroups bogTwo = null;
            try(ObjectInputStream ois = new ObjectInputStream(new FileInputStream("a.txt"))) {
                bogTwo = (BaseOfGroups) ois.readObject();
            } catch(Exception e) {
                e.printStackTrace();
                System.out.println("ERROR two");
            }
            System.out.println("bogTwo = " + bogTwo);
        }
    }
    
}

Students.java

import java.io.Serializable;

/**
 *
 * @author kamaz
 */
public class Students extends Human implements Serializable {
    
    public Students(int age, String sex, String name, String surname) {
        super(age, sex, name, surname);
    }

    public Students() {
        super();
    }

    @Override
    public String toString() {
        return super.toString(); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void setSurname(String surname) {
        super.setSurname(surname); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public String getSurname() {
        return super.getSurname(); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void setName(String name) {
        super.setName(name); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public String getName() {
        return super.getName(); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void setSex(String sex) {
        super.setSex(sex); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public String getSex() {
        return super.getSex(); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void setAge(int age) {
        super.setAge(age); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public int getAge() {
        return super.getAge(); //To change body of generated methods, choose Tools | Templates.
    }
    
}