Vector add() Method in Java with Example

In this source code example, we will demonstrate the usage of the Vector add() method in Java with an example.

Vector add(Object element) Method

boolean add(Object element): This method appends the specified element to the end of this vector.

Vector add(Object element) Method Example

Below program illustrates the working of java.util.Vector.add(Object element) method:

import java.util.Vector;

/*
 *  Example of add(E e) method 
 */
public class VectorExample
{

	public static void main( String[] args )
	{
	    
	    // Creating an empty Vector 
		Vector vector = new Vector<>();

		/*
		 * Appends the specified element to the end of this Vector.
		 */
		vector.add(100);
		vector.add(200);
		vector.add(300);
                vector.add(400);
                vector.add(500);
		System.out.println("vector  : " + vector);

	}
}

Output:

vector  : [100, 200, 300, 400, 500]

Vector void add(int index, Object element) Method

This method inserts an element at a specified index in the vector. It shifts the element currently at that position (if any) and any subsequent elements to the right (will change their indices by adding one).

Vector void add(int index, Object element) Method Example

Below program illustrates the working of java.util.Vector.add(Object element) method:

// Java code to illustrate boolean add(Object element) 
import java.util.*; 
  
public class VectorDemo { 
    public static void main(String args[]) 
    { 
  
        // Creating an empty Vector 
        Vector programLangs = new Vector(); 
  
        // Use add() method to add elements in the vector 
        programLangs.add("C"); 
        programLangs.add("C++"); 
        programLangs.add("Java"); 
        programLangs.add("Python"); 
        programLangs.add("Go"); 
  
        // Output the present vector 
        System.out.println("The vector is: " + programLangs); 
  
        // Adding new elements to the end 
        programLangs.add(2, "Scala"); 
        programLangs.add(4, "JavaScript"); 
  
        // Printing the new vector 
        System.out.println("The new Vector is: " + programLangs); 
    } 
} 

Output:

The vector is: [C, C++, Java, Python, Go]
The new Vector is: [C, C++, Scala, Java, JavaScript, Python, Go]

References

https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Vector.html