Create Unit Tuple from List in Java

To create Unit Tuple from another collection, use the fromCollection() method. Here, we will create a Unit Tuple from a List collection, therefore the same method is used.

Let us first see what we need to work with JavaTuples. To work with JavaTuples. To work with the Unit class in JavaTuples, you need to import the following package −

import org.javatuples.Unit;

Note − Steps to download and run JavaTuples program. If you are using Eclipse IDE to run Unit Class in Java Tuples, then Right Click Project ->Properties ->Java Build Path ->Add External Jars and upload the downloaded JavaTuples jar file.

The following is an example −

Example

import java.util.*;
import org.javatuples.Unit;
public class Demo {
   public static void main(String[] args) {
      List < String > myList = new ArrayList < String > ();
      myList.add("This is it!");
      Unit < String > u = Unit.fromCollection(myList);
      System.out.println(u);
   }
}

Output

[This is it!]