The addAtX() method of the Octet Tuple in Java

The addAtX() method is used in Octet Tuple to add value. Here, X is the index wherein you need to add the value i.e. to add value at index 0, use the addAt0() and value as a parameter. Let us first see what we need to work with JavaTuples. To work with Octet class in JavaTuples, you need to import the following package

import org.javatuples.Octet;

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 add value in Octet Tuple in Java

Example

import org.javatuples.Octet;
public class Demo {
   public static void main(String[] args) {
      Octet<String, String, String, String, String, String, String, String> oc = 
         Octet.with("laptop", "desktop","mobile", "tablet","monitor", "LCD","LED", "OLED");
      // add at index 4
      System.out.println(oc.addAt4("Pen Drive"));
      // add at index 5
      System.out.println(oc.addAt5("Headphone"));
   }
}

Output

[laptop, desktop, mobile, tablet, Pen Drive, monitor, LCD, LED, OLED]
[laptop, desktop, mobile, tablet, monitor, Headphone, LCD, LED, OLED]