A Decade is a Tuple from JavaTuples library that deals with 3 elements. Since this Decade is a generic class, it can hold any type of value in it.
Since Decade 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 Decade<A, B, C, D, E, F, G, H, I, J> extends Tuple implements IValue0<A>, IValue1<B>, IValue2<C>, IValue3<D>, IValue4<E>, IValue5<F, IValue6<G, IValue7<H>, IValue8<I, J>
Class hierarchy
Object ↳ org.javatuples.Tuple ↳ org.javatuples.Decade<A, B, C, D, E, F, G, H, I, J>
- From Constructor:
Syntax:
Decade<A, B, C, D, E, F, G, H, I, J> decade = new Decade<A, B, C, D, E, F, G, H, I, J> (value1, value2, value3, value4, value5, value6, value7, value8, value9, value10);
Example:
// Below is a Java program to create
// a Decade tuple from Constructor
import
java.util.*;
import
org.javatuples.Decade;
class
GfG {
public
static
void
main(String[] args)
{
Decade<Integer, Integer, Integer, Integer, Integer, Integer, Integer,
Integer, Integer, Integer> decade
= Decade.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
),
Integer.valueOf(
9
),
Integer.valueOf(
10
));
System.out.println(decade);
}
}
Output:
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
- Using with() method: The with() method is a function provided by the JavaTuples library, to instantiate the object with such values.
Syntax:
Decade<type1, type2, type3, type4, type5, type6, type7, type8, type9> decade = Decade.with(value1, value2, value3, value4, value5, value6, value7, value8, value9, value10);
Example:
// Below is a Java program to create
// a Decade tuple from with() method
import
java.util.*;
import
org.javatuples.Decade;
class
GfG {
public
static
void
main(String[] args)
{
Decade<Integer, Integer, Integer, Integer, Integer, Integer, Integer, Integer,
Integer, Integer> decade
= Decade.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
),
Integer.valueOf(
9
),
Integer.valueOf(
10
));
System.out.println(decade);
}
}
Output:
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
- 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:
Decade<type1, type2, type3, type4, type5, type6, type7, type8, type9> decade = Decade.fromCollection(collectionWith_10_value); Decade<type1, type2, type3, type4, type5, type6, type7, type8, type9> decade = Decade.fromArray(arrayWith_10_value);
Example:
// Below is a Java program to create
// a Decade tuple from Collection
import
java.util.*;
import
org.javatuples.Decade;
class
GfG {
public
static
void
main(String[] args)
{
// Creating Decade 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
);
list.add(
9
);
list.add(
10
);
Decade<Integer, Integer, Integer, Integer, Integer, Integer, Integer,
Integer, Integer, Integer> decade
= Decade.fromCollection(list);
// Creating Decade from Array
Integer[] arr = {
1
,
2
,
3
,
4
,
5
,
6
,
7
,
8
,
9
,
10
};
Decade<Integer, Integer, Integer, Integer, Integer, Integer, Integer,
Integer, Integer, Integer> otherDecade
= Decade.fromArray(arr);
System.out.println(decade);
System.out.println(otherDecade);
}
}
Output:
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10] [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
Getting value
The getValueX() method can be used to fetch the value in a Tuple at index X. The indexing in Tuples starts with 0. Hence the value at index X represents the value at position X+1.
Syntax:
Decade<type1, type2, type3, type4, type5, type6, type7, type8, type9> decade = new Decade<type1, type2, type3, type4, type5, type6, type7, type8, type9> (value1, value2, value3, value4, value5, value6, value7, value8, value9, value10); type1 val1 = decade.getValue0();
Example:
// Below is a Java program to get // a Decade value import java.util.*; import org.javatuples.Decade; class GfG { public static void main(String[] args) { Decade<Integer, Integer, Integer, Integer, Integer, Integer, Integer, Integer, Integer, Integer> decade = Decade.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 ), Integer.valueOf( 9 ), Integer.valueOf( 10 )); System.out.println(decade.getValue0()); System.out.println(decade.getValue2()); } } |
Output:
1 3
Setting Decade 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:
Decade<type1, type2, type3, type4, type5, type6, type7, type8, type9> decade = new Decade<type1, type2, type3, type4, type5, type6, type7, type8, type9> (value1, value2, value3, value4, value5, value6, value7, value8, value9, value10); Decade<type1, type2, type3, type4, type5, type6, type7, type8, type9> otherDecade = decade.setAtX(value);
Example:
// Below is a Java program to set // a Decade value import java.util.*; import org.javatuples.Decade; class GfG { public static void main(String[] args) { Decade<Integer, Integer, Integer, Integer, Integer, Integer, Integer, Integer, Integer, Integer> decade = Decade.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 ), Integer.valueOf( 9 ), Integer.valueOf( 10 )); Decade<Integer, Integer, Integer, Integer, Integer, Integer, Integer, Integer, Integer, Integer> otherDecade = decade.setAt3( 40 ); System.out.println(otherDecade); } } |
Output:
[1, 2, 3, 40, 5, 6, 7, 8, 9, 10]
Adding a value
JavaTuples do not support Tuple with more than 10 values. Hence there is no function to add a value in Decade.
Searching in Decade
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:
Decade<type1, type2, type3, type4, type5, type6, type7, type8, type9> decade = new Decade<type1, type2, type3, type4, type5, type6, type7, type8, type9> (value1, value2, value3, value4, value5, value6, value7, value8, value9, value10); boolean res = decade.contains(value2);
Example:
// Below is a Java program to search // a value in a Decade import java.util.*; import org.javatuples.Decade; class GfG { public static void main(String[] args) { Decade<Integer, Integer, Integer, Integer, Integer, Integer, Integer, Integer, Integer, Integer> decade = Decade.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 ), Integer.valueOf( 9 ), Integer.valueOf( 10 )); boolean exist = decade.contains( 5 ); boolean exist1 = decade.contains( false ); System.out.println(exist); System.out.println(exist1); } } |
Output:
true false
Iterating through Decade
Since Decade implement the Iterable<Object> interface. It means that they can be iterated in the same way as collections or arrays.
Syntax:
Decade<type1, type2, type3, type4, type5, type6, type7, type8, type9> decade = new Decade<type1, type2, type3, type4, type5, type6, type7, type8, type9> (value1, value2, value3, value4, value5, value6, value7, value8, value9, value10); for (Object item : decade) { ... }
Example:
// Below is a Java program to iterate // a Decade import java.util.*; import org.javatuples.Decade; class GfG { public static void main(String[] args) { Decade<Integer, Integer, Integer, Integer, Integer, Integer, Integer, Integer, Integer, Integer> decade = Decade.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 ), Integer.valueOf( 9 ), Integer.valueOf( 10 )); for (Object item : decade) System.out.println(item); } } |
Output:
1 2 3 4 5 6 7 8 9 10
leave a comment
0 Comments