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Java Vector insertElementAt() Method with Example

Vector Class insertElementAt() method: Here, we are going to learn about the insertElementAt() method of Vector Class with its syntax and example.
Submitted by Preeti Jain, on March 17, 2020

Vector Class insertElementAt() method

• insertElementAt() method is available in java.util package.
• insertElementAt() method is used to set the given element (ele) at the given (indices) in thid Vector.
• insertElementAt() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.
• insertElementAt() method may throw an exception at the time of the inserting element.
  ArrayIndexOutOfBoundsException: This exception may throw when the given indices are not in a range.

Syntax:

    public void insertElementAt(Element ele, int indices);

Parameter(s):

• Element ele – represents the element to be added.
• int indices – represents the position of inserted element.

Return value:

The return type of the method is void, it returns nothing.

Example:

// Java program to demonstrate the example 
// of void insertElementAt(Element ele, int indices)
// method of Vector 

import java.util.*;

public class InsertElementAtOfVector {
    public static void main(String[] args) {
        // Instantiates a Vector object  with
        // initial capacity of "10"
        Vector < String > v = new Vector < String > (10);

        // By using add() method is to add the
        // elements in this v
        v.add("C");
        v.add("C++");
        v.add("JAVA");

        // Display Vector
        System.out.println("v: " + v);

        // By using insertElementAt("SFDC", 1) method is
        // to insert the given object "SFDC" at the given
        // indices "1"
        v.insertElementAt("SFDC", 1);

        // Display updated vector
        System.out.println("v.insertElementAt(SFDC, 1): " + v);
    }
}

Output

v: [C, C++, JAVA]
v.insertElementAt(SFDC, 1): [C, SFDC, C++, JAVA]