Skip to Content

Get Enumeration over Java ArrayList Example

  1. /*
  2.   Get Enumeration over Java ArrayList Example
  3.   This java example shows how to get Enumeration over Java ArrayList using
  4.   enumeration method of Collections class. This example also shows how to enumerate
  5.   through elements of Java ArrayList.
  6. */
  7.  
  8. import java.util.Enumeration;
  9. import java.util.ArrayList;
  10. import java.util.Collections;
  11.  
  12. public class GetEnumerationOverArrayListExample {
  13.  
  14.   public static void main(String[] args) {
  15.     //create an ArrayList object
  16.     ArrayList arrayList = new ArrayList();
  17.    
  18.     //Add elements to ArrayList
  19.     arrayList.add("A");
  20.     arrayList.add("B");
  21.     arrayList.add("D");
  22.     arrayList.add("E");
  23.     arrayList.add("F");
  24.  
  25.     /*
  26.        Get Enumeration over Java ArrayList object using,
  27.        static Enumeration enumeration(Collection c) method of Collections class.
  28.      
  29.        This method returns the enumeration object over the specified Collection.
  30.      
  31.     */
  32.    
  33.     //get the Enumeration object
  34.     Enumeration e = Collections.enumeration(arrayList);
  35.    
  36.     //enumerate through the ArrayList elements
  37.     System.out.println("Enumerating through Java ArrayList");
  38.     while(e.hasMoreElements())
  39.       System.out.println(e.nextElement());
  40.   }
  41. }
  42.  
  43. /*
  44. Output would be
  45. Enumerating through Java ArrayList
  46. A
  47. B
  48. D
  49. E
  50. F
  51. */