Java Vector removeElementAt() Method

The removeElementAt() method of Java Vector class is used to delete the component at the specified index. Each element in this vector with an index greater or equal to the given index is shifted downward. Now the vector index is one smaller than the value it had previously.

Syntax

Following is the declaration of removeElementAt() method:

Parameter

DataType	Parameter	Description	Required/Optional
int	index	It is an index of the object which will be removed. Required

Return

This method does not return anything. It only removed the element from the vector.

Exceptions

IndexOutOfBoundsException- This method has thrown an exception if the index of an array is out of range i.e. (index < 0 || index >= size()).

Compatibility Version

Java 1.2 and above

Example 1

import java.util.*;
public class VectorRemoveElementAtExample1 {  
	public static void main(String arg[]) {		
	    //Create an empty vector   
	    Vector<Integer> vec = new Vector<>(); 
	    //Add elements in the vector
	    vec.add(1);
	    vec.add(2);
	    vec.add(3);
	    vec.add(4);
	    vec.add(5);
	    vec.add(6);
	    //Displaying the vector element
	    System.out.println("Vector element before removal: " +vec);
	    //Remove an element
	    vec.removeElementAt(5);	    
	    //Displaying the vector element again
	    System.out.println("Vector element after removal: " +vec);
	    }            
}

Test it Now

Output:

Vector element before removal: [1, 2, 3, 4, 5, 6]
Vector element after removal: [1, 2, 3, 4, 5]

Example 2

import java.util.*;
public class VectorRemoveElementAtExample2 {  
	public static void main(String arg[]) {		
		//Create an empty Vector
		Vector<String> vec = new Vector<>();				
		//Add elements to the Vector
		vec.add("Rahul");
		vec.add("Karan");
		vec.add("Rahul");
		vec.add("Rohan");				
		//Printing the elements of the Vector
		System.out.println("The elements of a Vector before removal: "+vec);	
		//Removing the element at index 2
	      vec.removeElementAt(2);				
		//Printing the elements of the Vector again
		System.out.println("The elements of a vector after removal: "+vec);
	      }            
}

Test it Now

Output:

The elements of a vector before removal: [Rahul, Karan, Rahul, Rohan]
The elements of a vector after removal: [Rahul, Karan, Rohan]

Example 3

import java.util.*;
public class VectorRemoveElementAtExample3 {  
	public static void main(String arg[]) {		
	    //Create an empty vector   
	    Vector<Integer> vec = new Vector<>(); 
	    //Add elements in the vector
	    vec.add(9);
	    vec.add(8);
	    vec.add(7);
	    //Remove an element
	    vec.removeElementAt(50);	    
	    //Displaying the vector element after removal
	    System.out.println("Vector element after removal: " +vec);
	    }            
}

Test it Now

Output:

Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 50 >= 3
	at java.base/java.util.Vector.removeElementAt(Vector.java:579)
	at myPackage.VectorRemoveElementAtExample3.main(VectorRemoveElementAtExample3.java:12)

Next TopicJava Vector

← prev next →