java.util.Collections.swap() method is a java.util.Collections class method. It swaps elements at the specified positions in given list.
// Swaps elements at positions "i" and "j" in myList. public static void swap(List mylist, int i, int j) It throws IndexOutOfBoundsException if either i or j is out of range.
Original List : Original List : [code, practice, quiz, geeksforgeeks] After swap(mylist, 1, 2) : [code, quiz, practice, geeksforgeeks] After swap(mylist, 3, 1) : [code, geeksforgeeks, practice, quiz]
This article is contributed by Mohit Gupta. If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to email@example.com. See your article appearing on the GeeksforGeeks main page and help other Geeks.
Attention reader! Don’t stop learning now. Get hold of all the important Java Foundation and Collections concepts with the Fundamentals of Java and Java Collections Course at a student-friendly price and become industry ready.