Java Vector removeElement() Method with Examples

In the previous article we have discussed Java Vector remove() Method with Examples

In this article you will see the use of Vector removeElement() method in Java along with suitable examples.

Java Vector removeElement() Method with Examples

boolean removeElement():

This java.util.Vector.removeElement() method is used to remove the first occurrence of a particular element in a vector. It returns True if the element is found and removed else it returns False.

Syntax-

vectorName.removeElement(Object element)

Where,

vectorName refers to the name of your Vector.
Object element refers to the element that you want to remove.

Let’s see it’s use with different examples.

Example with String Type Vector
Example with Integer Type Vector

Method-1: Java Vector removeElement() Method-Example with String Type Vector

Approach:

Create a vector of String type.
Add some String elements to the vector.
Print the vector elements.
Remove elements from Vector by using removeElementAt(Object element) method.
Print the vector elements.

Program:

Case-1: Element is present in vector

import java.util.*;
public class Main
{
    public static void main(String[] args) 
    {
        // Create a Vector of string datatype
        Vector<String> vec = new Vector<String>();
        // Adding some elements to the vector
        vec.add("a");
        vec.add("b");
        vec.add("c");
        vec.add("d");
        vec.add("a");
        // Prints the vector elements
        System.out.println("The vector elements are "+vec);

        // Remove first occurrence of element from vector
        boolean result=vec.removeElement("a");
        
        if(result)
            // Print the vector elements
            System.out.println("The new vector after removing the element is "+vec);
        else
            // Print the vector elements
            System.out.println("The vector element is not present");
    }
}

Output:

The vector elements are [a,b,c,d,a]
The new vector after removing the element is [b,c,d,a]

Case-2: Element is not present in vector

import java.util.*;
public class Main
{
    public static void main(String[] args) 
    {
        // Create a Vector of string datatype
        Vector<String> vec = new Vector<String>();
        // Adding some elements to the vector
        vec.add("a"); 
        vec.add("b"); 
        vec.add("c"); 
        vec.add("d"); 
        vec.add("a");
        // Prints the vector elements
        System.out.println("The vector elements are "+vec);

        // Remove first occurrence of element from vector
        boolean result=vec.removeElement("m");
        
        if(result)
            // Print the vector elements
            System.out.println("The new vector after removing the element is "+vec);
        else
            // Print the vector elements
            System.out.println("The vector element is not present");
    }
:

Output:

The vector elements are [a,b,c,d,a]
The vector element is not present

Method-2: Java Vector removeElement() Method-Example with Integer Type Vector

Approach:

Create a vector of Integer type.
Add some elements to the vector.
Print the vector elements.
Remove elements from Vector by using removeElementAt(Object element) method.
Print the vector elements.

Program:

Case-1: Element is present in vector

import java.util.*;
public class Main
{
    public static void main(String[] args) 
    {
        // Create a Vector of integer datatype
        Vector<Integer> vec = new Vector<Integer>();
        // Adding some elements to the vector
        vec.add(100);
        vec.add(200);
        vec.add(300);
        vec.add(100);
        vec.add(500);
        // Prints the vector elements
        System.out.println("The vector elements are "+vec);

        // Remove first occurrence of element from vector
        boolean result=vec.removeElement(100);
        
        if(result)
            // Print the vector elements
            System.out.println("The new vector after removing the element is "+vec);
        else
            // Print the vector elements
            System.out.println("The vector element is not present");
    }
}

Output:

The vector elements are [100, 200, 300, 100, 500]
The new vector after removing the element is [200, 300, 100, 500]

Case-2: Element is not present in vector

import java.util.*;
public class Main
{
    public static void main(String[] args) 
    {
        // Create a Vector of integer datatype
        Vector<Integer> vec = new Vector<Integer>();
        // Adding some elements to the vector
        vec.add(100);
        vec.add(200);
        vec.add(300);
        vec.add(100);
        vec.add(500);
        // Prints the vector elements
        System.out.println("The vector elements are "+vec);

        // Remove first occurrence of element from vector
        boolean result=vec.removeElement(900);
        
        if(result)
            // Print the vector elements
            System.out.println("The new vector after removing the element is "+vec);
        else
            // Print the vector elements
            System.out.println("The vector element is not present");
    }
:

Output:

The vector elements are [100, 200, 300, 100, 500]
The vector element is not present

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