Implement Pair Class with Unit Class in Java using JavaTuples

Following are the ways to implement Pair Class with Unit Class

1. Using direct values
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   import java.util.*; import org.javatuples.*;    class GfG {        public static void main(String[] args)     {         // Create a Unit         Unit<String> unit = new Unit<String>("GeeksforGeeks");            // print unit         System.out.println("Unit: " + unit);            // create Pair from Unit         Pair<Integer, String>             pair = new Pair<Integer, String>(                 Integer.valueOf(1), unit.getValue0());            // Print the Pair         System.out.println("Pair: " + pair);     } }

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   Output:

   Unit: [GeeksforGeeks]
   Pair: [1, GeeksforGeeks]
   

2. Using Unit.add() method
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   // Below is a Java program to demonstrate // use of add() method with // single value    import java.util.*; import org.javatuples.*;    class GfG {     public static void main(String[] args)     {         // Using with() method to instantiate unit object         Unit<String> unit = Unit.with("Geeks");            // print unit         System.out.println("Unit: " + unit);            // Using add() to create Pair         Pair<String, String> pair = unit.add("forGeeks");            // Print the Pair         System.out.println("Pair: " + pair);     } }

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   Output:

   Unit: [Geeks]
   Pair: [Geeks, forGeeks]
   

3. Using Unit.addAtX() method
   • Program 1: Adding Unit at Position 0 using addAt0()
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     // Below is a Java program to demonstrate // use of addAt0() method with // direct value    import java.util.*; import org.javatuples.Unit; import org.javatuples.Pair;    class GfG {     public static void main(String[] args)     {         // Using with() method to instantiate unit object         Unit<String> unit = Unit.with("Geeks");            // print unit         System.out.println("Unit: " + unit);            // Using addAtX() to create Pair         Pair<String, String> pair = unit.addAt0("forGeeks");            // Print the Pair         System.out.println("Pair: " + pair);     } }

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     Output:

     Unit: [Geeks]
     Pair: [forGeeks, Geeks]
     

   • Program 2: Adding Unit at Position 1 using addAt1()
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     // Below is a Java program to demonstrate // use of addAt1() method with // direct value    import java.util.*; import org.javatuples.Unit; import org.javatuples.Pair;    class GfG {     public static void main(String[] args)     {         // Using with() method to instantiate unit object         Unit<String> unit = Unit.with("Geeks");            // print unit         System.out.println("Unit: " + unit);            // Using addAtX() to create Pair         Pair<String, String> pair = unit.addAt1("forGeeks");            // Print the Pair         System.out.println("Pair: " + pair);     } }

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     Output:

     Unit: [Geeks]
     Pair: [Geeks, forGeeks]
     

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