Check out example codes for "how to reverse a list in java". It will help you in understanding the concepts better.

Code Example 1

//import java.util.Collections;
//create and add items to list
Collectons.reverse(list);

Code Example 2

List<String> stringList = Arrays.asList("A", "B", "C");
    Collections.reverse(stringList);
    assertThat(stringList).containsExactly("C", "B", "A");

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