Reversing a Collection in JAVA


SUBMITTED BY: ponnynoob

DATE: Sept. 2, 2017, 7:21 a.m.

FORMAT: Java

SIZE: 689 Bytes

HITS: 114468

  1. import java.util.ArrayList;
  2. import java.util.Collections;
  3. import java.util.List;
  4. import java.util.ListIterator;
  5. public class UtilDemo3 {
  6. public static void main(String[] args) {
  7. String[] coins = { "A", "B", "C", "D", "E" };
  8. List l = new ArrayList();
  9. for (int i = 0; i < coins.length; i++)l.add(coins[i]);
  10. ListIterator liter = l.listIterator();
  11. System.out.println("Before reversal");
  12. while (liter.hasNext())System.out.println(liter.next());
  13. Collections.reverse(l);
  14. liter = l.listIterator();
  15. System.out.println("After reversal");
  16. while (liter.hasNext())System.out.println(liter.next());
  17. }
  18. }

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