Java Vector removeElement() Method

The removeElement() method of Java Vector class is used to remove the first (lowest-indexed) occurrence of the argument from this vector. Removing an element decreases the vector size by one.

Syntax

Following is the declaration of removeElement() method:

Parameter

Parameter	Description	Required/Optional
obj	It is an element which will be removed from the vector.	Required

Return

The removeElement() method returns true if the argument was a component of the vector, otherwise returns false.

Exceptions

Compatibility Version

Java 1.2 and above

Example 1

import java.util.*;
public class VectorRemoveElementExample1 {  
	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);
	    System.out.println("Vector element before removal: " + vec);
	    //Remove an element
	    vec.removeElement(5);	    
	    //Checking vector and displays the element
	    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, 6]

Example 2

import java.util.*;
public class VectorRemoveElementExample2 {  
	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 remove: "+vec);
		//Removing the "Rahul" from the Vector
		boolean b = vec.removeElement("Rahul");
		System.out.println("Is the removal successful?? "+b);				
		//Printing the elements of the Vector
		System.out.println("The elements of the Vector after remove: "+vec);
	    }            
}

Test it Now

Output:

The elements of a Vector before remove: [Rahul, Karan, Rahul, Rohan]
Is the removal successful?? true
The elements of the Vector after remove: [Karan, Rahul, Rohan]

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