Create KeyValue Tuple from an array in Java

To create KeyValue tuple from an array in Java, you need to use the fromArray() method. Let us first see what we need to work with JavaTuples. To work with KeyValue class in JavaTuples, you need to import the following package

import org.javatuples.KeyValue;

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 create KeyValue tuple from an array in Java

Example

import org.javatuples.KeyValue; public class Demo {    public static void main(String[] args) {       String[] strArr = {"Points", "Marks"};       KeyValue<String, String> kValue = KeyValue.fromArray(strArr);       System.out.println(" KeyValue Tuple = "+kValue);    } }

Output

KeyValue Tuple = [Points, Marks]