How to create LabelValue Tuple from an array in Java

Java 8Object Oriented ProgrammingProgramming

To create LabelValue tuple from an array, use the fromArray() method. First, create an array and add elements to it. After that, use the fromArray() method to create a Tuple and set the array in it.

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 implement the LabelValue JavaTuples class from an array −


import org.javatuples.LabelValue;
import java.util.*;
public class Demo {
   public static void main(String[] args) {
      Integer[] myArr = {150, 300};
      LabelValue<Integer, Integer> lbValue = LabelValue.fromArray(myArr);
      System.out.println("Elements in the LabelValue Tuple = "+lbValue);


Elements in the LabelValue Tuple = [150, 300]

Above, we have first created an Integer array with 2 elements −

Integer[] myArr = {150, 300};

After that, fromArray() method is used to create LabelValue tuple from an array −

LabelValue<Integer, Integer> lbValue = LabelValue.fromArray(myArr);
Updated on 30-Jul-2019 22:30:25