1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 |
/* 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 */ |
thanks for all examples