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Septet Class in JavaTuples

A Septet is a Tuple from JavaTuples library that deals with 3 elements. Since this Septet is a generic class, it can hold any type of value in it.

Since Septet 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 Septet<A, B, C, D, E, F, G> extends Tuple
implements IValue0<A>, IValue1<B>, IValue2<C>, IValue3<D>, IValue4<E>, IValue5<F, IValue6<G>

Class hierarchy

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

Creating Septet Tuple

  • From Constructor:

    Syntax:

    Septet<A, B, C, D, E, F, G> septet = 
        new Septet<A, B, C, D, E, F, G>
            (value1, value2, value3, value4, value5, value6, value7);
    

    Example:

    // Below is a Java program to create
    // a Septet tuple from Constructor
      
    import java.util.*;
    import org.javatuples.Septet;
      
    class GfG {
        public static void main(String[] args)
        {
            Septet<Integer, Integer.Integer, Integer, Integer, Integer, Integer> septet
                = Septet.with(Integer.valueOf(1),
                              Integer.valueOf(2),
                              Integer.valueOf(3),
                              Integer.valueOf(4),
                              Integer.valueOf(5),
                              Integer.valueOf(6),
                              Integer.valueOf(7));
      
            System.out.println(septet);
        }
    }

    Output:

    br>
    [1, 2, 3, 4, 5, 6, 7]
    
  • Using with() method: The with() method is a function provided by the JavaTuples library, to instantiate the object with such values.

    Syntax:

    Septet<type1, type2, type3, type4, type5, type6, type7> septet = 
        Septet.with(value1, value2, value3, value4, value5, value6, value7);
    

    Example:

    // Below is a Java program to create
    // a Septet tuple from with() method
      
    import java.util.*;
    import org.javatuples.Septet;
      
    class GfG {
        public static void main(String[] args)
        {
            Septet<Integer, Integer.Integer, Integer, Integer, Integer, Integer> septet
                = Septet.with(Integer.valueOf(1),
                              Integer.valueOf(2),
                              Integer.valueOf(3),
                              Integer.valueOf(4),
                              Integer.valueOf(5),
                              Integer.valueOf(6),
                              Integer.valueOf(7));
      
            System.out.println(septet);
        }
    }

    Output:

    [1, 2, 3, 4, 5, 6, 7]
    
  • 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:

    Septet<type1, type2, type3, type4, type5, type6, type7> septet = 
        Septet.fromCollection(collectionWith_7_value);
    
    Septet<type1, type2, type3, type4, type5, type6, type7> septet = 
        Septet.fromArray(arrayWith_7_value);
    

    Example:

    // Below is a Java program to create
    // a Septet tuple from Collection
      
    import java.util.*;
    import org.javatuples.Septet;
      
    class GfG {
        public static void main(String[] args)
        {
            // Creating Septet 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);
      
            Septet<Integer, Integer, Integer, Integer, Integer, Integer> septet
                = Septet.fromCollection(list);
      
            // Creating Septet from Array
            Integer[] arr = { 1, 2, 3, 4, 5, 6, 7 };
      
            Septet<Integer, Integer, Integer, Integer, Integer, Integer> otherSeptet
                = Septet.fromArray(arr);
      
            System.out.println(septet);
            System.out.println(otherSeptet);
        }
    }

    Output:

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

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:

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

type1 val1 = septet.getValue0();

Example:

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

Output:



1
3

Setting Septet Value

Since the Tuples are immutable, it means that modifying a value at any 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:

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

Septet<type1, type2, type3, type4, type5, type6, type7> 
    otherSeptet = septet.setAtX(value);

Example:

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

Output:

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

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:

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

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

Example:

// Below is a Java program to add
// a value
  
import java.util.*;
import org.javatuples.Septet;
import org.javatuples.Octet;
  
class GfG {
    public static void main(String[] args)
    {
        Septet<Integer, Integer.Integer, Integer, Integer, Integer, Integer> septet
            = Septet.with(Integer.valueOf(1),
                          Integer.valueOf(2),
                          Integer.valueOf(3),
                          Integer.valueOf(4),
                          Integer.valueOf(5),
                          Integer.valueOf(6),
                          Integer.valueOf(7));
  
        Octet<Integer, Integer, Integer.Integer, Integer, Integer, Integer, Integer> octet
            = septet.addAt7(8);
  
        System.out.println(octet);
    }
}

Output:

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

Searching in Septet

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:



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

boolean res = septet.contains(value2);

Example:

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

Output:

true
false

Iterating through Septet

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

Syntax:

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

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

Example:

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

Output:

1
2
3
4
5
6
7




This article is attributed to GeeksforGeeks.org

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