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Java Vector size() Method with Example

Vector Class size() method: Here, we are going to learn about the size() method of Vector Class with its syntax and example.
Submitted by Preeti Jain, on March 20, 2020

Vector Class size() method

• size() method is available in java.util package.
• size() method is used to return the size (i.e. the number of the element exists) of this Vector.
• size() 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.
• size() method does not throw an exception at the time of returning size.

Syntax:

    public int size();

Parameter(s):

• It does not accept any parameter.

Return value:

The return type of the method is int, it returns the size of this vector.

Example:

// Java program to demonstrate the example 
// of int size() method of Vector 

import java.util.*;

public class SizeOfVector {
 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");

  // By using size() methos is to return the 
  // size i.e. the number of element exists
  // Display Vector Size
  System.out.println("v.size(): " + v.size());
 }
}

Output

v.size(): 3