The contains() method of Java Unit Tuple

To search a value in Unit class in JavaTuples, use the contains() method.

Let us first see what we need 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 org.javatuples.Unit;
public class Demo {
   public static void main(String[] args) {
      Unit < String > u = Unit.with("Professional!");
      // Search for an element
      boolean valSearch = u.contains("Professional!");
      System.out.println("Is the value in the Unit? " + valSearch);
   }
}

Output

Is the value in the Unit? True

Let us see another example −

import org.javatuples.Unit;
public class Demo {
   public static void main(String[] args) {
      Unit < String > u = Unit.with("Mobile!");
      // Search for an element
      boolean valSearch = u.contains("Desktop!");
      System.out.println("Is the value in the Unit? " + valSearch);
   }
}

Output

Is the value in the Unit? False