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The contains() method of the Java Ennead Tuple
The contains() method of the Ennead Tuple in Java is used to search for a value in the Tuple. To find the existence of a value, you need to just set it as a parameter of the method. It returns a boolean value i.e. TRUE is returned for the existence of a value, else FALSE.
Let us first see what we need to work with JavaTuples. To work with Ennead class in JavaTuples, you need to import the following package −
import org.javatuples.Ennead;
Note − Download JavaTuples Jar library to run JavaTuples program. If you are using Eclipse IDE, then Right Click Project -> Properties -> Java Build Path -> Add External Jars and upload the downloaded JavaTuples jar file. Refer the below guide for all the steps to run JavaTuples −
Steps − How to run JavaTuples program in Eclipse
The following is an example to implement the contains() method of the Ennead Tuple in Java −
Example
import org.javatuples.Ennead;
public class Demo {
public static void main(String[] args) {
Ennead<String, String, String, String, String, String, String, String, String> e =
Ennead.with("Katie", "Tom","Ryan", "Tim","Bradley", "David","Steve", "Brad", "Jacob");
System.out.println("Tuple elements = "+e);
boolean res = e.contains("Justin");
System.out.println("Does the value exist in the Tuple? "+res);
}
}Output
Tuple elements = [Katie, Tom, Ryan, Tim, Bradley, David, Steve, Brad, Jacob] Does the value exist in the Tuple? False
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