Vector size() Method in Java

The java.util.vector.size() method in Java is used to get the size of the Vector or the number of elements present in the Vector.

Syntax:

Vector.size()

Parameters: The method does not take any parameter.

Return Value: The method returns the size or the number of elements present in the Vector.

Below programs illustrate the Java.util.Vector.size() method:



Program 1: Vector with string elements.

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// Java code to illustrate size()
import java.util.*;
  
public class VectorDemo {
    public static void main(String args[])
    {
        // Creating an empty Vector
        Vector<String> vec_tor = new Vector<String>();
  
        // Use add() method to add elements into the Vector
        vec_tor.add("Welcome");
        vec_tor.add("To");
        vec_tor.add("Geeks");
        vec_tor.add("4");
        vec_tor.add("Geeks");
  
        // Displaying the Vector
        System.out.println("Vector: " + vec_tor);
  
        // Displaying the size of Vector
        System.out.println("The size is: " + vec_tor.size());
    }
}

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Output:


Vector: [Welcome, To, Geeks, 4, Geeks]
The size is: 5





Program 2: Vector with integer elements.











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// Java code to illustrate size() 


import java.util.*; 


  


public class VectorDemo { 


    public static void main(String args[]) 


    { 


        // Creating an empty Vector 


        Vector<Integer> vec_tor = new Vector<Integer>(); 


  


        // Use add() method to add elements into the Vector 


        vec_tor.add(10); 


        vec_tor.add(15); 


        vec_tor.add(30); 


        vec_tor.add(20); 


        vec_tor.add(5); 


  


        // Displaying the Vector 


        System.out.println("Vector: " + vec_tor); 


  


        // Displaying the size of Vector 


        System.out.println("The size is: " + vec_tor.size()); 


    } 


} 



















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Output:


Vector: [10, 15, 30, 20, 5]
The size is: 5






          
          
          
          

            

    

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