Swap two elements in an arraylist in java

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We can use Collections.swap() method to swap two elements in an arraylist in java. We have to pass the indexes which we need to swap.

Syntax:

Collections.swap(arrayList, element1, element2);

Example:

package com.w3schools;
 
import java.util.ArrayList;
import java.util.Collections;
 
public class Test {
  public static void main(String args[]){
	ArrayList<String> arrayList = new ArrayList<String>();
	arrayList.add("Jai");
	arrayList.add("Mahesh");
	arrayList.add("Vivek");
	arrayList.add("Naren");
	arrayList.add("Hemant");
	arrayList.add("Vishal");
	System.out.println("Actual ArrayList:"+arrayList);
	Collections.swap(arrayList, 3, 5);
        System.out.println("Results after swap operation:" + arrayList);
  }
}

Output

Actual ArrayList:[Jai, Mahesh, Vivek, Naren, Hemant, Vishal]
Results after swap operation:[Jai, Mahesh, Vivek, Vishal, Hemant, Naren]