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Iterate through elements of Java LinkedList using Iterator example

  1. /*
  2.   Iterate through elements of Java LinkedList using Iterator example
  3.   This java example shows how to iterate through elements of Java LinkedList
  4.   using Iterator's hasNext and next methods.
  5. */
  6.  
  7. import java.util.Iterator;
  8. import java.util.LinkedList;
  9.  
  10.  
  11. public class IterateThroughLinkedListUsingIteratorExample {
  12.  
  13.   public static void main(String[] args) {
  14.  
  15.     //create LinkedList object
  16.     LinkedList lList = new LinkedList();
  17.    
  18.     //add elements to LinkedList
  19.     lList.add("1");
  20.     lList.add("2");
  21.     lList.add("3");
  22.     lList.add("4");
  23.     lList.add("5");
  24.  
  25.     /*
  26.      * To get an Iterator object of LinkedList, use
  27.      * Iterator iterator() method.
  28.      */
  29.    
  30.     Iterator itr = lList.iterator();
  31.    
  32.     System.out.println("Iterating through elements of Java LinkedList...");
  33.     System.out.println("LinkedList contains : ");
  34.     while(itr.hasNext())
  35.     {
  36.       System.out.println(itr.next());
  37.     }
  38.  
  39.   }
  40. }
  41. /*
  42. Output would be
  43. Iterating through elements of Java LinkedList...
  44. LinkedList contains :
  45. 1
  46. 2
  47. 3
  48. 4
  49. 5
  50. */