Add an element at specified index of Java Vector Example
- /*
- Add an element to specified index of Java Vector Example
- This Java Example shows how to add an element at specified index of java
- Vector object using add method.
- */
- import java.util.Vector;
- public class AddElementToSpecifiedIndexVectorExample {
- public static void main(String[] args) {
- //create an Vector object
- Vector v = new Vector();
- //Add elements to Vector
- v.add("1");
- v.add("2");
- v.add("3");
- /*
- To add an element at the specified index of Vector use
- void add(int index, Object obj) method.
- This method inserts the specified element at the specified index in the
- Vector.
- */
- v.add(1,"INSERTED ELEMENT");
- /*
- Please note that add method DOES NOT overwrites the element previously
- at the specified index in the Vector. It shifts the elements to right side
- and increasing the Vector size by 1.
- */
- System.out.println("Vector contains...");
- //display elements of Vector
- for(int index=0; index < v.size(); index++)
- System.out.println(v.get(index));
- /*
- To append an element at the end of Vector use
- boolean add(Object o) method.
- It returns true as a general behavior of the Collection.add method and
- appends the specified element at the end of Vector.
- */
- }
- }
- /*
- Vector contains...
- 1
- INSERTED ELEMENT
- 2
- 3
- */
