Java: Reverse elements in a array list

Last update on May 21 2025 12:47:35 (UTC/GMT +8 hours)

11. Reverse ArrayList

Write a Java program to reverse elements in an array list.

Pictorial Presentation:

Java Collection, ArrayList Exercises: Reverse elements in a list

Sample Solution:-

Java Code:

import java.util.*;
  public class Exercise11 {
  public static void main(String[] args) {
  // Creae a list and add some colors to the list
  List<String> list_Strings = new ArrayList<String>();
  list_Strings.add("Red");
  list_Strings.add("Green");
  list_Strings.add("Orange");
  list_Strings.add("White");
  list_Strings.add("Black");
  System.out.println("List before reversing :\n" + list_Strings);  
  Collections.reverse(list_Strings);
  System.out.println("List after reversing :\n" + list_Strings); 
 }
}

Sample Output:

List before reversing :                                                
[Red, Green, Orange, White, Black]                                     
List after reversing :                                                 
[Black, White, Orange, Green, Red]

Flowchart:

For more Practice: Solve these Related Problems:

Write a Java program to reverse an ArrayList using Collections.reverse() and then print the reversed list.
Write a Java program to reverse an ArrayList manually using a loop and swap operations.
Write a Java program to reverse an ArrayList using Java streams by converting it to a list and then collecting it in reverse order.
Write a Java program to implement a recursive method that reverses an ArrayList without using additional data structures.

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