Category: 08. Java Tuples

Problem Description

How to implement Decade class using Ennead class?

Example

Following example shows how to accomplish the above task. Each tuple has add() and addAtX() methods to convert the tuple.

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

File: TupleTester.java

package com.tutorialspoint;
import org.javatuples.Decade;
import org.javatuples.Ennead;
public class TupleTester {
   public static void main(String args[]){
  Ennead<Integer, Integer, Integer, Integer, Integer, Integer,
     Integer, Integer, Integer> ennead = Ennead.with(5,6,7,8,9,10,11,12,13);
  System.out.println(ennead);
  Decade<Integer, Integer, Integer, Integer, Integer, Integer, 
     Integer, Integer, Integer, String> decade = ennead.add("test");
  
  Decade<String, Integer, Integer, Integer, Integer, Integer, 
     Integer, Integer, Integer, Integer> decade1 = ennead.addAt0("test");
  
  System.out.println(decade);
  System.out.println(decade1);
   }
}

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

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Output

Verify the Output

[5, 6, 7, 8, 9, 10, 11, 12, 13]
[5, 6, 7, 8, 9, 10, 11, 12, 13, test]
[test, 5, 6, 7, 8, 9, 10, 11, 12, 13]

Problem Description

How to implement Ennead class using Octet class?

Example

Following example shows how to accomplish the above task. Each tuple has add() and addAtX() methods to convert the tuple.

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

File: TupleTester.java

package com.tutorialspoint;
import org.javatuples.Ennead;
import org.javatuples.Octet;
public class TupleTester {
   public static void main(String args[]){
  Octet<Integer, Integer, Integer, Integer, Integer, Integer,
     Integer, Integer> octet = Octet.with(5,6,7,8,9,10,11,12);
  System.out.println(octet);
  Ennead<Integer, Integer, Integer, Integer, Integer, Integer, 
     Integer, Integer, String> ennead = octet.add("test");
  Ennead<String, Integer, Integer, Integer, Integer, Integer, 
     Integer, Integer, Integer> ennead1 = octet.addAt0("test");
  System.out.println(ennead);
  System.out.println(ennead1);
   }
}

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

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Output

Verify the Output

[5, 6, 7, 8, 9, 10, 11, 12]
[5, 6, 7, 8, 9, 10, 11, 12, test]
[test, 5, 6, 7, 8, 9, 10, 11, 12]

Problem Description

How to implement Octet class using Septet class?

Example

Following example shows how to accomplish the above task. Each tuple has add() and addAtX() methods to convert the tuple.

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

File: TupleTester.java

package com.tutorialspoint;
import org.javatuples.Octet;
import org.javatuples.Septet;
public class TupleTester {
   public 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);
  Octet<Integer, Integer, Integer, Integer, Integer, Integer, 
     Integer, String> octet = septet.add("test");
  Octet<String, Integer, Integer, Integer, Integer, Integer, 
     Integer, Integer> octet1 = septet.addAt0("test");
  System.out.println(octet);
  System.out.println(octet1);
   }
}

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

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Output

Verify the Output

[5, 6, 7, 8, 9, 10, 11]
[5, 6, 7, 8, 9, 10, 11, test]
[test, 5, 6, 7, 8, 9, 10, 11]

Problem Description

How to implement Septet class using Sextet class?

Example

Following example shows how to accomplish the above task. Each tuple has add() and addAtX() methods to convert the tuple.

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

File: TupleTester.java

package com.tutorialspoint;
import org.javatuples.Septet;
import org.javatuples.Sextet;
public class TupleTester {
   public static void main(String args[]){
  Sextet<Integer, Integer, Integer, Integer, Integer, Integer> sextet 
     = Sextet.with(5,6,7,8,9,10);
  System.out.println(sextet);
  Septet<Integer, Integer, Integer, Integer, Integer, Integer, String> 
     septet = sextet.add("test");
  Septet<String, Integer, Integer, Integer, Integer, Integer, Integer> 
     septet1 = sextet.addAt0("test");
  System.out.println(septet);
  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

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Output

Verify the Output

[5, 6, 7, 8, 9, 10]
[5, 6, 7, 8, 9, 10, test]
[test, 5, 6, 7, 8, 9, 10]

Problem Description

How to implement Sextet class using Quintet class?

Example

Following example shows how to accomplish the above task. Each tuple has add() and addAtX() methods to convert the tuple.

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

File: TupleTester.java

package com.tutorialspoint;
import org.javatuples.Quintet;
import org.javatuples.Sextet;
public class TupleTester {
   public static void main(String args[]){
  Quintet<Integer, Integer, Integer, Integer, Integer> quintet 
     = Quintet.with(5,6,7,8,9);
  System.out.println(quintet);
  Sextet<Integer, Integer, Integer, Integer, Integer, String> sextet 
     = quintet.add("test");
  Sextet<String, Integer, Integer, Integer, Integer, Integer> sextet1 
     = quintet.addAt0("test");
  System.out.println(sextet);
  System.out.println(sextet1);
   }
}

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

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Output

Verify the Output

[5, 6, 7, 8, 9]
[5, 6, 7, 8, 9, test]
[test, 5, 6, 7, 8, 9]

Problem Description

How to implement Quintet class using Quartet class?

Example

Following example shows how to accomplish the above task. Each tuple has add() and addAtX() methods to convert the tuple.

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

File: TupleTester.java

package com.tutorialspoint;
import org.javatuples.Quintet;
import org.javatuples.Quartet;
public class TupleTester {
   public static void main(String args[]){
  Quartet<Integer, Integer, Integer, Integer> quartet = Quartet.with(5,6,7,8);
  System.out.println(quartet);
  Quintet<Integer, Integer, Integer, Integer, String> quintet = quartet.add("test");
  Quintet<String, Integer, Integer, Integer, Integer> quintet1 = quartet.addAt0("test");
  System.out.println(quintet);
  System.out.println(quintet1);
   }
}

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

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Output

Verify the Output

[5, 6, 7, 8]
[5, 6, 7, 8, test]
[test, 5, 6, 7, 8]

Problem Description

How to implement Quartet class using Triplet class?

Example

Following example shows how to accomplish the above task. Each tuple has add() and addAtX() methods to convert the tuple.

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

File: TupleTester.java

package com.tutorialspoint;
import org.javatuples.Quartet;
import org.javatuples.Triplet;
public class TupleTester {
   public static void main(String args[]){
  Triplet<Integer, Integer, Integer> triplet = Triplet.with(5,6,7);
  System.out.println(triplet);
  Quartet<Integer, Integer, Integer, String> quartet = triplet.add("test");
  Quartet<String, Integer, Integer, Integer> quartet1 = triplet.addAt0("test");
  System.out.println(quartet);
  System.out.println(quartet1);
   }
}

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

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Output

Verify the Output

[5, 6, 7]
[5, 6, 7, test]
[test, 5, 6, 7]

Problem Description

How to implement Triplet class using Pair class?

Example

Following example shows how to accomplish the above task. Each tuple has add() and addAtX() methods to convert the tuple.

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

File: TupleTester.java

package com.tutorialspoint;
import org.javatuples.Triplet;
import org.javatuples.Pair;
public class TupleTester {
   public static void main(String args[]){
  Pair<Integer, Integer> pair = Pair.with(5,6);
  System.out.println(pair);
  Triplet<Integer, Integer, String> triplet = pair.add("test");
  Triplet<String, Integer, Integer> triplet1 = pair.addAt0("test");
  System.out.println(triplet);
  System.out.println(triplet1);
   }
}

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

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Output

Verify the Output

[5, 6]
[5, 6, test]
[test, 5, 6]

Problem Description

How to implement Pair class using Unit class?

Example

Following example shows how to accomplish the above task. Each tuple has add() and addAtX() methods to convert the tuple.

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

File: TupleTester.java

package com.tutorialspoint;
import org.javatuples.Pair;
import org.javatuples.Unit;
public class TupleTester {
   public static void main(String args[]){
  Unit<Integer> unit = Unit.with(5);
  System.out.println(unit);
  Pair<Integer, String> pair = unit.add("test");
  Pair<String, Integer> pair1 = unit.addAt0("test");
  System.out.println(pair);
  System.out.println(pair1);
   }
}

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

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Output

Verify the Output

[5]
[5, test]
[test, 5]

Introduction

The org.javatuples.KeyValue class represents a Tuple with two elements with positions 0 and 1 renamed as “key” and “value”, respectively.

Class Declaration

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

public final class KeyValue<A,B>
   extends Tuple
  implements IValue0&lt;A&gt;, IValue1&lt;B&gt;

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Class Constructor

Class Methods

Methods inherite

This class inherits methods from the following classes −

• org.javatuples.Tuple
• Object

Example

Let’s see KeyValue 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.KeyValue;
public class TupleTester {
   public static void main(String args[]){
  KeyValue<Integer, Integer> keyValue = KeyValue.with(5,6);
  System.out.println(keyValue);
  List<Integer> list = new ArrayList<>();
  list.add(1);
  list.add(2);
  Integer key = KeyValue.getKey();
  System.out.println(key);
  Integer value = KeyValue.getValue();
  System.out.println(value);
  KeyValue<Integer, Integer> keyValue1 = KeyValue.fromCollection(list);   
  System.out.println(keyValue1);
   }
}

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]
5
6
[1, 2]