Search for a value in Java LabelValue Tuple

Java 8Object Oriented ProgrammingProgramming

To search for a value in the LabelValue tuple in Java, use the contains() method. It returns a boolean value. TRUE is returned if the value exists, else FALSE is the return value. Let us first see what we need to work with JavaTuples. To work with LabelValue class in JavaTuples, you need to import the following package −

import org.javatuples.LabelValue;

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−

StepsHow to run JavaTuples program in Eclipse

The following is an example to search for a value in Java LabelValue Tuple −


import org.javatuples.LabelValue;
public class Demo {
   public static void main(String[] args) {
      LabelValue<Integer, String> lv = new LabelValue<Integer, String>(5, "Rank");
      System.out.println("LabelValue Tuple = "+lv);
      System.out.println("Get the key = "+lv.getLabel());
      System.out.println("Get the value = "+lv.getValue());
      System.out.println("Get the size of the Tuple = "+lv.getSize());
      System.out.println("Does the value exist = "+lv.contains("Rank"));


LabelValue Tuple = [5, Rank]
Get the key = 5
Get the value = Rank
Get the size of the Tuple = 2
Does the value exist = true
Published on 28-Mar-2019 06:20:20