Java Vector set() Method with Example

Vector Class set() method: Here, we are going to learn about the set() method of Vector Class with its syntax and example.
Submitted by Preeti Jain, on March 19, 2020

Vector Class set() method

set() method is available in java.util package.
set() method is used to replace the old element with the given element (ele) when it exists otherwise it sets the given element at the given indices in this Vector.
set() 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.
set() method may throw an exception at the time of replacing the element.
ArrayIndexOutOfBoundsException: This exception may throw when the given first parameter is not in a range.

Syntax:

    public Element set(int indices, Element ele);

Parameter(s):

int indices – represents the indices of replacing element.
Element ele – represents the element to be set at the given indices.

Return value:

The return type of the method is Element, it returns the old element at the given indices when exists.

Example:

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

import java.util.*;

public class SetOfVector {
 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 set() method is to
  // replace the element JAVA at the 
  // indices 2 with the given element
  // SFDC
  v.set(2, "SFDC");

  // Display updated vector
  System.out.println("v.set(2, SFDC): " + v);
 }
}

Output

v: [C, C++, JAVA]
v.set(2, SFDC): [C, C++, SFDC]

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