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Remove an element from specified index of Java Vector Example

  1. /*
  2.   Remove an element from specified index of Java Vector Example
  3.   This Java Example shows how to remove an element at specified index of java
  4.   Vector object using remove and removeElementAt methods.
  5. */
  6.  
  7. import java.util.Vector;
  8.  
  9. public class RemoveElementFromVectorByIndexExample {
  10.  
  11.   public static void main(String[] args) {
  12.     //create a Vector object
  13.     Vector v = new Vector();
  14.    
  15.     //Add elements to Vector
  16.     v.add("1");
  17.     v.add("2");
  18.     v.add("3");
  19.     v.add("4");
  20.     v.add("5");
  21.    
  22.     /*
  23.       To remove an element from the specified index of Vector use
  24.       Object remove(int index) method.
  25.       It returns the element that was removed from the Vector.
  26.     */
  27.     Object obj = v.remove(1);
  28.     System.out.println(obj + " is removed from Vector");
  29.    
  30.     System.out.println("Vector contents after remove call...");
  31.     //display elements of Vector
  32.     for(int index=0; index < v.size(); index++)
  33.       System.out.println(v.get(index));
  34.    
  35.     /*
  36.        void removeElement(int index) is also identical to the remove method but
  37.        remove method returns the element that was removed while return type of
  38.        removeElementAt method is void.
  39.     */
  40.     v.removeElementAt(2);
  41.  
  42.     System.out.println("Vector contents after removeElementAt call...");
  43.     //display elements of Vector
  44.     for(int index=0; index < v.size(); index++)
  45.       System.out.println(v.get(index));
  46.    
  47.    
  48.   }
  49. }
  50.  
  51. /*
  52. Output would be
  53. 2 is removed from Vector
  54. Vector contents after remove call...
  55. 1
  56. 3
  57. 4
  58. 5
  59. Vector contents after removeElementAt call...
  60. 1
  61. 3
  62. 5
  63. */