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);
Java
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);
}
}
|
[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);
Java
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);
}
}
|
[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);
Java
import java.util.*;
import org.javatuples.Octet;
class GfG {
public static void main(String[] args)
{
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);
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);
}
}
|
[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
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
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
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
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
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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