Swap two elements in an arraylist in java

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.w3spoint;
 
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]
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