swap items in arraylist java
public class ArrayListExample
{
public static void main(String[] args)
{
ArrayList<String> list = new ArrayList<>(Arrays.asList("a", "b", "c", "d", "e", "f"));
System.out.println(list);
Collections.swap(list, 1, 2);
System.out.println(list);
}
}java list swap 2 elements
String a = words.get(0);
words.set(0, words.get(words.size() - 1));
words.set(words.size() - 1, a)Copyright © 2021 Codeinu
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