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Octet Class in JavaTuples

  • Last Updated : 04 Aug, 2021

A Octet is a Tuple from JavaTuples library that deals with 3 elements. Since this Octet is a generic class, it can hold any type of value in it.
Since Octet is a Tuple, hence it also has all the characteristics of JavaTuples: 
 

  • They are Typesafe
  • They are Immutable
  • They are Iterable
  • They are Serializable
  • They are Comparable (implements Comparable<Tuple>)
  • They implement equals() and hashCode()
  • They also implement toString()

 Class Declaration

public final class Octet<A, B, C, D, E, F, G, H> extends Tuple
implements IValue0<A>, IValue1<B>, IValue2<C>, IValue3<D>, IValue4<E>, 
                                            IValue5<F, IValue6<G, IValue7<H>

 Class hierarchy

Object
  ↳ org.javatuples.Tuple
      ↳ org.javatuples.Octet<A, B, C, D, E, F, G, H>

 Creating Octet Tuple

From Constructor:
Syntax
 



Octet<A, B, C, D, E, F, G, H> octet = 
    new Octet<A, B, C, D, E, F, G, H>
        (value1, value2, value3, value4, value5, value6, value7, value8);
  • Example
     

Java




// Below is a Java program to create
// a Octet tuple from Constructor
 
import java.util.*;
import org.javatuples.Octet;
 
class GfG {
    public static void main(String[] args)
    {
        Octet<Integer, Integer, Integer.Integer, Integer, Integer, Integer, Integer> octet
            = Octet.with(Integer.valueOf(1),
                         Integer.valueOf(2),
                         Integer.valueOf(3),
                         Integer.valueOf(4),
                         Integer.valueOf(5),
                         Integer.valueOf(6),
                         Integer.valueOf(7),
                         Integer.valueOf(8));
 
        System.out.println(octet);
    }
}
  • Output: 
     
[1, 2, 3, 4, 5, 6, 7, 8]
  • Using with() method: The with() method is a function provided by the JavaTuples library, to instantiate the object with such values.
    Syntax
     
Octet<type1, type2, type3, type4, type5, type6, type7> octet = 
    Octet.with(value1, value2, value3, value4, value5, value6, value7, value8);
  • Example

Java




// Below is a Java program to create
// a Octet tuple from with() method
 
import java.util.*;
import org.javatuples.Octet;
 
class GfG {
    public static void main(String[] args)
    {
        Octet<Integer, Integer, Integer.Integer, Integer, Integer, Integer, Integer> octet
            = Octet.with(Integer.valueOf(1),
                         Integer.valueOf(2),
                         Integer.valueOf(3),
                         Integer.valueOf(4),
                         Integer.valueOf(5),
                         Integer.valueOf(6),
                         Integer.valueOf(7),
                         Integer.valueOf(8));
 
        System.out.println(octet);
    }
}
  • Output: 
     
[1, 2, 3, 4, 5, 6, 7, 8]
  • From other collections: The fromCollection() method is used to create a Tuple from a collection, and fromArray() method is used to create from an array. The collection/array must have the same type as of the Tuple and the number of values in the collection/array must match the Tuple class.
    Syntax
     
Octet<type1, type2, type3, type4, type5, type6, type7> octet = 
    Octet.fromCollection(collectionWith_8_value);

Octet<type1, type2, type3, type4, type5, type6, type7> octet = 
    Octet.fromArray(arrayWith_8_value);
  • Example

Java




// Below is a Java program to create
// a Octet tuple from Collection
 
import java.util.*;
import org.javatuples.Octet;
 
class GfG {
    public static void main(String[] args)
    {
        // Creating Octet from List
        List<Integer> list = new ArrayList<Integer>();
        list.add(1);
        list.add(2);
        list.add(3);
        list.add(4);
        list.add(5);
        list.add(6);
        list.add(7);
        list.add(8);
 
        Octet<Integer, Integer, Integer, Integer, Integer, Integer, Integer> octet
            = Octet.fromCollection(list);
 
        // Creating Octet from Array
        Integer[] arr = { 1, 2, 3, 4, 5, 6, 7, 8 };
 
        Octet<Integer, Integer, Integer, Integer, Integer, Integer, Integer> otherOctet
            = Octet.fromArray(arr);
 
        System.out.println(octet);
        System.out.println(otherOctet);
    }
}
  • Output: 
     
[1, 2, 3, 4, 5, 6, 7, 8]
[1, 2, 3, 4, 5, 6, 7, 8]

Getting Value
The getValueX() method can be used to fetch the value in a Tuple at index X. The indexing in Tuples start with 0. Hence the value at index X represents the value at position X+1.
Syntax
 

Octet<type1, type2, type3, type4, type5, type6, type7> octet = 
    new Octet<type1, type2, type3, type4, type5, type6, type7>
        (value1, value2, value3, value4, value5, value6, value7, value8);

type1 val1 = octet.getValue0();

Example

Java




// Below is a Java program to get
// a Octet value
 
import java.util.*;
import org.javatuples.Octet;
 
class GfG {
    public static void main(String[] args)
    {
        Octet<Integer, Integer, Integer.Integer, Integer, Integer, Integer, Integer> octet
            = Octet.with(Integer.valueOf(1),
                         Integer.valueOf(2),
                         Integer.valueOf(3),
                         Integer.valueOf(4),
                         Integer.valueOf(5),
                         Integer.valueOf(6),
                         Integer.valueOf(7),
                         Integer.valueOf(8));
 
        System.out.println(octet.getValue0());
        System.out.println(octet.getValue2());
    }
}

Output: 
 

1
3

Setting Octet Value

Since the Tuples are immutable, it means that modifying a value at an index is not possible. Hence JavaTuples offer setAtX(value) which creates a copy of the Tuple with a new value at index X, and returns that Tuple.
Syntax
 



Octet<type1, type2, type3, type4, type5, type6, type7> octet = 
    new Octet<type1, type2, type3, type4, type5, type6, type7>
      (value1, value2, value3, value4, value5, value6, value7, value8);

Octet<type1, type2, type3, type4, type5, type6, type7> 
    otherOctet = octet.setAtX(value);

Example

Java




// Below is a Java program to set
// a Octet value
 
import java.util.*;
import org.javatuples.Octet;
 
class GfG {
    public static void main(String[] args)
    {
        Octet<Integer, Integer, Integer.Integer, Integer, Integer, Integer, Integer> octet
            = Octet.with(Integer.valueOf(1),
                         Integer.valueOf(2),
                         Integer.valueOf(3),
                         Integer.valueOf(4),
                         Integer.valueOf(5),
                         Integer.valueOf(6),
                         Integer.valueOf(7),
                         Integer.valueOf(8));
 
        Octet<Integer, Integer, Integer.Integer, Integer, Integer, Integer, Integer> otherOctet
            = octet.setAt3(40);
 
        System.out.println(otherOctet);
    }
}

Output: 
 

[1, 2, 3, 40, 5, 6, 7, 8]

Adding a value

Adding a value can be done with the help of addAtX() method, where X represent the index at which the value is to be added. This method returns a Tuple of element one more than the called Tuple.
Syntax
 

Octet<type1, type2, type3, type4, type5, type6, type7> octet = 
    new Octet<type1, type2, type3, type4, type5, type6, type7>
        (value1, value2, value3, value4, value5, value6, value7, value8);

Octet<type 1, type 2, type 3, type 4, type 5, type 6, type 7> octet = 
    octet.addAtx(value);

Example

Java




// Below is a Java program to add
// a value
 
import java.util.*;
import org.javatuples.Octet;
import org.javatuples.Ennead;
 
class GfG {
    public static void main(String[] args)
    {
        Octet<Integer, Integer, Integer.Integer, Integer, Integer, Integer, Integer> octet
            = Octet.with(Integer.valueOf(1),
                         Integer.valueOf(2),
                         Integer.valueOf(3),
                         Integer.valueOf(4),
                         Integer.valueOf(5),
                         Integer.valueOf(6),
                         Integer.valueOf(7),
                         Integer.valueOf(8));
 
        Ennead<Integer, Integer, Integer, Integer.Integer, Integer, Integer, Integer, Integer> ennead
            = octet.addAt8(9);
 
        System.out.println(ennead);
    }
}

Output: 
 

[1, 2, 3, 4, 5, 6, 7, 8, 9]

 

Searching in Octet

An element can be searched in a tuple with the pre-defined method contains(). It returns a boolean value whether the value is present or not.
Syntax
 



Octet<type1, type2, type3, type4, type5, type6, type7> octet = 
    new Octet<type1, type2, type3, type4, type5, type6, type7>
        (value1, value2, value3, value4, value5, value6, value7, value8);

boolean res = octet.contains(value2);

Example

Java




// Below is a Java program to search
// a value in a Octet
 
import java.util.*;
import org.javatuples.Octet;
 
class GfG {
    public static void main(String[] args)
    {
        Octet<Integer, Integer, Integer.Integer, Integer, Integer, Integer, Integer> octet
            = Octet.with(Integer.valueOf(1),
                         Integer.valueOf(2),
                         Integer.valueOf(3),
                         Integer.valueOf(4),
                         Integer.valueOf(5),
                         Integer.valueOf(6),
                         Integer.valueOf(7),
                         Integer.valueOf(8));
 
        boolean exist = octet.contains(5);
        boolean exist1 = octet.contains(false);
 
        System.out.println(exist);
        System.out.println(exist1);
    }
}

Output: 
 

true
false

 Iterating through Octet

Since Octet implement the Iterable<Object> interface. It means that they can be iterated in the same way as collections or arrays.
Syntax
 

Octet<type1, type2, type3, type4, type5, type6, type7> octet = 
    new Octet<type1, type2, type3, type4, type5, type6, type7>
            (value1, value2, value3, value4, value5, value6, value7, value8);

for (Object item : octet) {
        ...
}

Example

Java




// Below is a Java program to iterate
// a Octet
 
import java.util.*;
import org.javatuples.Octet;
 
class GfG {
    public static void main(String[] args)
    {
        Octet<Integer, Integer, Integer.Integer, Integer, Integer, Integer, Integer> octet
            = Octet.with(Integer.valueOf(1),
                         Integer.valueOf(2),
                         Integer.valueOf(3),
                         Integer.valueOf(4),
                         Integer.valueOf(5),
                         Integer.valueOf(6),
                         Integer.valueOf(7),
                         Integer.valueOf(8));
 
        for (Object item : octet)
            System.out.println(item);
    }
}

Output: 
 

1
2
3
4
5
6
7
8

 

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