Set a Pair value in Java Tuple

The setAtX() method is used to set the Pair value in JavaTuples and a copy with a new value at the specified index i.e. index x.

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

import org.javatuples.Pair;

Note − Steps to download and run JavaTuples program If you are using Eclipse IDE to run Pair Class in JavaTuples, 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 org.javatuples.Pair;
public class Demo {
   public static void main(String[] args) {
      Pair < String, String > p1 = Pair.with("One", "Two");
      // set at index 1
      Pair < String, String > p2 = p1.setAt1("Three");
      System.out.println("Result = " + p2);
   }
}

Output

Result = [One, Three]