JavaTuples - Septet Class-alljchome-开发者的教程家园

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JavaTuples - Septet Class

Introduction

The org.javatuples.Septet class represents a Tuple with seven elements.

Class Declaration

Following is the declaration for org.javatuples.Septet class −

pubpc 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 Constructor

Sr.No.	Constructor & Description
1	Septet(A value0, B value1, C value2, D value3, E value4, F value5, G value6) This creates a Septet Tuple.

Class Methods

Similarly setAt1() upto setAt6() set the value at index 1, and so on.

Sr.No.	Method & Description
1	Octet add(Unit tuple) This method returns a Octet tuple. Similarly other methods to add tuples are available e.g. add(Pair tuple) returns Ennead and upto add(Triplet tuple) returns Decade tuple.
2	Octet add(X0 value) This method add a value to the tuple and returns a Octet tuple. Similarly other methods to add values are available e.g. add(X0 value0, X1 value1) returns Ennead and so on upto add() with three parameters.
3	Octet addAt0(Unit value) This method add a Unit tuple at index 0 and returns a Octet tuple. Similarly other methods to add tuples are available e.g. addAt0(Pair value) returns Ennead and so on upto addAt0(Triplet). Other similar method are addAt1(Unit value) which add a unit at index0 and have similar methods upto addAt6(Triplet).
4	Octet addAt0(X0 value) This method add a value at index 0 and returns a Octet tuple. Similarly other methods to add values are available e.g. addAt0(X0 value0, X1 value1) returns Ennead and so on upto addAt0() with three parameters. Other similar method are addAt1(X0 value) which add a value at index0 and have similar methods upto addAt6() with three parameters.
5	static <X> Septet<X,X,X,X,X,X,X> fromArray(X[] array) Create tuple from array.
6	static <X> Septet<X,X,X,X,X,X,X> fromCollection(Collection<X> collection) Create tuple from collection.
7	static <X> Septet<X,X,X,X,X,X,X> fromIterable(Iterable<X> iterable) Create tuple from iterable.
8	static <X> Septet<X,X,X,X,X,X,X> fromIterable(Iterable<X> iterable, int index) Create tuple from iterable, starting from the specified index.
9	int getSize() Return the size of the tuple.
10	A getValue0() Returns the value of the tuple at index 0. Similarly getValue1() upto getValue6() returns the value at index 1 and so on.
11	Sextet<B,C,D,E,F,G> removeFrom0() Return the tuple after removing value of the tuple at index 0. Similarly removeFrom1() upto removeFrom6() returns the tuple after removing value of the tuple at index 1 and so on.
12	<X> Septet<X,B,C,D,E,F,G> setAt0(X value) Set the value of the tuple at index 0.
13	static <A> Septet<A,B,C,D,E,F,G> with(A value0, B value1, C value2, D value3, E value4, F value5, G value6) Create the tuple using given value.

Methods inherite

This class inherits methods from the following classes −

org.javatuples.Tuple

Object

Example

Let s see Septet Class in action. Here we ll see how to use various methods.

Create a java class file named TupleTester in C:>JavaTuples.

File: TupleTester.java

package com.tutorialspoint;
import java.util.ArrayList;
import java.util.List;
import org.javatuples.Septet;
import org.javatuples.Sextet;
import org.javatuples.Octet;
pubpc class TupleTester {
   pubpc static void main(String args[]){
      Septet<Integer, Integer, Integer, Integer, Integer,Integer,Integer> septet 
         = Septet.with(5, 6, 7,8,9,10,11);
      System.out.println(septet);
      boolean isPresent = septet.contains(5);
      System.out.println("5 is present: " + isPresent);
      List<Integer> pst = new ArrayList<>();
      pst.add(1);
      pst.add(2);
      pst.add(3);
      pst.add(4);
      pst.add(5);
      pst.add(6);
      pst.add(7);
      Octet<Integer, Integer, Integer, Integer, Integer, Integer, Integer, String> octet 
         = septet.add("Test");
      System.out.println(octet);
      Integer value = septet.getValue0();
      System.out.println(value);
      Sextet<Integer, Integer, Integer, Integer,Integer, Integer> sextet 
         = septet.removeFrom0();
      System.out.println(sextet);
      Septet<Integer, Integer, Integer, Integer, Integer,Integer, Integer> septet1 
         = Septet.fromCollection(pst);   
      System.out.println(septet1);
   }
}

Verify the result

Compile the classes using javac compiler as follows −

C:JavaTuples>javac -cp javatuples-1.2.jar ./com/tutorialspoint/TupleTester.java

Now run the TupleTester to see the result −

C:JavaTuples>java  -cp .;javatuples-1.2.jar com.tutorialspoint.TupleTester

Output

Verify the Output

[5, 6, 7, 8, 9, 10, 11]
5 is present: true
[5, 6, 7, 8, 9, 10, 11, Test]
5
[6, 7, 8, 9, 10, 11]
[1, 2, 3, 4, 5, 6, 7]