Below are the methods to implement a Ennead Class using Octet Class in Java:

Using direct values

// Java program to illustrate
// implementing Ennead Class
// from Octet Class
// using direct values

import java.util.*;
import org.javatuples.*;

class Prutor {

public static void main(String[] args)
{
// Create Octet
Octet<String, String, String, String, String, String, String, String>
octet = new Octet<String, String, String, String, String, String, String, String>(
"Octet", "Septet", "Sextet", "Quintet", "Quartet", "Triplet", "Pair", "Unit");

// Print the Octet
System.out.println("Octet: " + octet);

// Create Ennead from Octet
Ennead<String, String, String, String, String, String, String, String, String>
ennead = new Ennead<String, String, String, String, String, String, String, String, String>(
"Ennead",
octet.getValue0(),
octet.getValue1(),
octet.getValue2(),
octet.getValue3(),
octet.getValue4(),
octet.getValue5(),
octet.getValue6(),
octet.getValue7());

// Print the Ennead
System.out.println("Ennead: " + ennead);
}
}
Output:

Octet: [Octet, Septet, Sextet, Quintet, Quartet, Triplet, Pair, Unit]
Ennead: [Ennead, Octet, Septet, Sextet, Quintet, Quartet, Triplet, Pair, Unit]
Using Octet.add() method

// Java program to illustrate
// implementing Ennead Class
// from Octet Class
// using Octet.add()

import java.util.*;
import org.javatuples.*;

class Prutor {
public static void main(String[] args)
{
// Create Octet
Octet<String, String, String, String, String, String, String, String>
octet = new Octet<String, String, String, String, String, String, String, String>(
"Octet", "Septet", "Sextet", "Quintet", "Quartet", "Triplet", "Pair", "Unit");

// Print the Octet
System.out.println("Octet: " + octet);

// Create Ennead from Octet
Ennead<String, String, String, String, String, String, String, String, String>
ennead = octet.add("Ennead");

// Print the Ennead
System.out.println("Ennead: " + ennead);
}
}
Output:

Octet: [Octet, Septet, Sextet, Quintet, Quartet, Triplet, Pair, Unit]
Ennead: [Octet, Septet, Sextet, Quintet, Quartet, Triplet, Pair, Unit, Ennead]
Using Octet.addAtX() method
Program 1: Adding at Position 0 using addAt0()

// Java program to illustrate
// implementing Ennead Class
// from Octet Class
// using addAtx()

import java.util.*;
import org.javatuples.*

class Prutor {
public static void main(String[] args)
{
// Create Octet
Octet<String, String, String, String, String, String, String, String>
octet = new Octet<String, String, String, String, String, String, String, String>(
"Octet", "Septet", "Sextet", "Quintet", "Quartet", "Triplet", "Pair", "Unit");

// Print the Octet
System.out.println("Octet: " + octet);

// Create Ennead from Octet
Ennead<String, String, String, String, String, String, String, String, String>
ennead = octet.addAt0("Ennead");

// Print the Ennead
System.out.println("Ennead: " + ennead);
}
}
Output:

Octet: [Octet, Sextet, Quintet, Quartet, Triplet, Pair, Unit]
Ennead: [Ennead, Octet, Sextet, Quintet, Quartet, Triplet, Pair, Unit]
Program 2: Adding at Position 1 using addAt1()

// Java program to illustrate
// implementing Ennead Class
// from Octet Class
// using addAt1()

import java.util.*;
import org.javatuples.*;

class Prutor {
public static void main(String[] args)
{
// Create Octet
Octet<String, String, String, String, String, String, String, String>
octet = new Octet<String, String, String, String, String, String, String, String>(
"Octet", "Septet", "Sextet", "Quintet", "Quartet", "Triplet", "Pair", "Unit");

// Print the Octet
System.out.println("Octet: " + octet);

// Create Ennead from Octet
Ennead<String, String, String, String, String, String, String, String, String>
ennead = octet.addAt1("Ennead");

// Print the Ennead
System.out.println("Ennead: " + ennead);
}
}
Output:

Octet: [Octet, Septet, Sextet, Quintet, Quartet, Triplet, Pair, Unit]
Ennead: [Octet, Ennead, Septet, Sextet, Quintet, Quartet, Triplet, Pair, Unit]
Program 3: Adding at Position 2 using addAt2()

// Below is a Java program to demonstrate
// use of addAt2() method with
// direct value

import java.util.*;
import org.javatuples.*

class Prutor {
public static void main(String[] args)
{
// Create Octet
Octet<String, String, String, String, String, String, String, String>
octet = new Octet<String, String, String, String, String, String, String, String>(
"Octet", "Septet", "Sextet", "Quintet", "Quartet", "Triplet", "Pair", "Unit");

// Print the Octet
System.out.println("Octet: " + octet);

// Create Ennead from Octet
Ennead<String, String, String, String, String, String, String, String, String>
ennead = octet.addAt2("Ennead");

// Print the Ennead
System.out.println("Ennead: " + ennead);
}
}
Output:

Octet: [Octet, Septet, Sextet, Quintet, Quartet, Triplet, Pair, Unit]
Ennead: [Octet, Septet, Ennead, Sextet, Quintet, Quartet, Triplet, Pair, Unit]
Program 4: Adding at Position 3 using addAt3()

// Below is a Java program to demonstrate
// use of addAt3() method with
// direct value

import java.util.*;
import org.javatuples.*

class Prutor {
public static void main(String[] args)
{
// Create Octet
Octet<String, String, String, String, String, String, String, String>
octet = new Octet<String, String, String, String, String, String, String, String>(
"Octet", "Septet", "Sextet", "Quintet", "Quartet", "Triplet", "Pair", "Unit");

// Print the Octet
System.out.println("Octet: " + octet);

// Create Ennead from Octet
Ennead<String, String, String, String, String, String, String, String, String>
ennead = octet.addAt3("Ennead");

// Print the Ennead
System.out.println("Ennead: " + ennead);
}
}
Output:

Octet: [Octet, Septet, Sextet, Quintet, Quartet, Triplet, Pair, Unit]
Ennead: [Octet, Septet, Sextet, Ennead, Quintet, Quartet, Triplet, Pair, Unit]
Program 5: Adding at Position 4 using addAt4()

// Below is a Java program to demonstrate
// use of addAt4() method with
// direct value

import java.util.*;
import org.javatuples.*

class Prutor {
public static void main(String[] args)
{
// Create Octet
Octet<String, String, String, String, String, String, String, String>
octet = new Octet<String, String, String, String, String, String, String, String>(
"Octet", "Septet", "Sextet", "Quintet", "Quartet", "Triplet", "Pair", "Unit");

// Print the Octet
System.out.println("Octet: " + octet);

// Create Ennead from Octet
Ennead<String, String, String, String, String, String, String, String, String>
ennead = octet.addAt4("Ennead");

// Print the Ennead
System.out.println("Ennead: " + ennead);
}
}
Output:

Octet: [Octet, Septet, Sextet, Quintet, Quartet, Triplet, Pair, Unit]
Ennead: [Octet, Septet, Sextet, Quintet, Ennead, Quartet, Triplet, Pair, Unit]
Program 6: Adding at Position 5 using addAt5()

// Below is a Java program to demonstrate
// use of addAt5() method with
// direct value

import java.util.*;
import org.javatuples.*

class Prutor {
public static void main(String[] args)
{
// Create Octet
Octet<String, String, String, String, String, String, String, String>
octet = new Octet<String, String, String, String, String, String, String, String>(
"Octet", "Septet", "Sextet", "Quintet", "Quartet", "Triplet", "Pair", "Unit");

// Print the Octet
System.out.println("Octet: " + octet);

// Create Ennead from Octet
Ennead<String, String, String, String, String, String, String, String, String>
ennead = octet.addAt5("Ennead");

// Print the Ennead
System.out.println("Ennead: " + ennead);
}
}
Output:

Octet: [Octet, Septet, Sextet, Quintet, Quartet, Triplet, Pair, Unit]
Ennead: [Octet, Septet, Sextet, Quintet, Quartet, Ennead, Triplet, Pair, Unit]
Program 7: Adding at Position 6 using addAt6()

// Below is a Java program to demonstrate
// use of addAt6() method with
// direct value

import java.util.*;
import org.javatuples.*

class Prutor {
public static void main(String[] args)
{
// Create Octet
Octet<String, String, String, String, String, String, String, String>
octet = new Octet<String, String, String, String, String, String, String, String>(
"Octet", "Septet", "Sextet", "Quintet", "Quartet", "Triplet", "Pair", "Unit");

// Print the Octet
System.out.println("Octet: " + octet);

// Create Ennead from Octet
Ennead<String, String, String, String, String, String, String, String, String>
ennead = octet.addAt6("Ennead");

// Print the Ennead
System.out.println("Ennead: " + ennead);
}
}
Output:

Octet: [Octet, Septet, Sextet, Quintet, Quartet, Triplet, Pair, Unit]
Ennead: [Octet, Septet, Sextet, Quintet, Quartet, Triplet, Ennead, Pair, Unit]
Program 8: Adding at Position 7 using addAt7()

// Below is a Java program to demonstrate
// use of addAt7() method with
// direct value

import java.util.*;
import org.javatuples.*

class Prutor {
public static void main(String[] args)
{
// Create Octet
Octet<String, String, String, String, String, String, String, String>
octet = new Octet<String, String, String, String, String, String, String, String>(
"Octet", "Septet", "Sextet", "Quintet", "Quartet", "Triplet", "Pair", "Unit");

// Print the Octet
System.out.println("Octet: " + octet);

// Create Ennead from Octet
Ennead<String, String, String, String, String, String, String, String, String>
ennead = octet.addAt7("Ennead");

// Print the Ennead
System.out.println("Ennead: " + ennead);
}
}
Output:

Octet: [Octet, Septet, Sextet, Quintet, Quartet, Triplet, Pair, Unit]
Ennead: [Octet, Septet, Sextet, Quintet, Quartet, Triplet, Pair, Ennead, Unit]
Program 9: Adding at Position 8 using addAt8()

// Below is a Java program to demonstrate
// use of addAt8() method with
// direct value

import java.util.*;
import org.javatuples.*

class Prutor {
public static void main(String[] args)
{
// Create Octet
Octet<String, String, String, String, String, String, String, String>
octet = new Octet<String, String, String, String, String, String, String, String>(
"Octet", "Septet", "Sextet", "Quintet", "Quartet", "Triplet", "Pair", "Unit");

// Print the Octet
System.out.println("Octet: " + octet);

// Create Ennead from Octet
Ennead<String, String, String, String, String, String, String, String, String>
ennead = octet.addAt8("Ennead");

// Print the Ennead
System.out.println("Ennead: " + ennead);
}
}
Output:

Octet: [Octet, Septet, Sextet, Quintet, Quartet, Triplet, Pair, Unit]
Ennead: [Octet, Septet, Sextet, Quintet, Quartet, Triplet, Pair, Unit, Ennead]