How can we merge two JSON arrays in Java?

AJSONis alightweightdata exchange format. The format of JSON iskey-value pair .JSONArrayCan parse text from a string to generate avector-like objectand supports thejava.util.Listinterface. We can merge two JSON arrays in Java usingorg.json.simple.JSONArrayclass.

We can use theaddAll()method (inherited from interfacejava.util.List) to merge two JSON arrays in the program below.

Example

import org.json.simple.JSONArray; import java.io.IOException; public class MergeJSONArraysTest { public static void main(String[] args) throws IOException { JSONArray jsonArray1 = new JSONArray(); // first json array jsonArray1.add("Java"); jsonArray1.add("Python"); jsonArray1.add("Spark"); JSONArray jsonArray2 = new JSONArray(); // second json array jsonArray2.add("Selenium"); jsonArray2.add("ServiceNow"); jsonArray1.addAll(jsonArray2); // merge two arrays using addAll() method System.out.println(jsonArray1); } }

Output

["Java","Python","Spark","Selenium","ServiceNow"]

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