Replace an Element of LinkedList Java example

  1. /*
  2.   Replace an Element of LinkedList Java example
  3.   This java example shows how to replace a LinkedList element at specified index
  4.   using set method of Java LinkedList class.
  5. */
  6.  
  7. import java.util.LinkedList;
  8.  
  9. public class LinkedListReplaceElementExample {
  10.  
  11. public static void main(String[] args) {
  12.  
  13. //create LinkedList object
  14. LinkedList lList = new LinkedList();
  15.  
  16. //add elements to LinkedList
  17. lList.add("1");
  18. lList.add("2");
  19. lList.add("3");
  20. lList.add("4");
  21. lList.add("5");
  22.  
  23. System.out.println("LinkedList contains : " + lList);
  24.  
  25. /*
  26.   * To replace an element of LinkedList at specified index, use
  27.   * Object set(int index, Object element) method.
  28.   *
  29.   * It replaces specified element at specified index in the LinkedList and
  30.   * returns the element previously at the specified index.
  31.   */
  32.  
  33. lList.set(3, "Replaced");
  34. System.out.println("After replacing 4, LinkedList contains : " + lList);
  35.  
  36.  
  37. }
  38. }
  39.  
  40. /*
  41. Output would be
  42. LinkedList contains : [1, 2, 3, 4, 5]
  43. After replacing 4, LinkedList contains : [1, 2, 3, Replaced, 5]
  44. */

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