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 characterstics 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:
// 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:
// 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:
// 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:
// 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:
// 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:
// 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:
// 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:
// 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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