Home » Java programming language

Java Vector removeElement() Method with Example

Vector Class removeElement() method: Here, we are going to learn about the removeElement() method of Vector Class with its syntax and example.
Submitted by Preeti Jain, on March 19, 2020

Vector Class removeElement() method

• removeElement() method is available in java.util package.
• removeElement() method is used to remove the first occurrence of the given object when it exists.
• removeElement() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.
• removeElement() method does not throw an exception at the time of removing an element.

Syntax:

    public boolean removeElement(Object ob);

Parameter(s):

• Object ob – represents the element to remove of the first occurrence in this Vector.

Return value:

The return type of the method is boolean, it returns true when the first occurrence of the given object is to be removed successfully otherwise it returns false.

Example:

// Java program to demonstrate the example 
// of boolean removeElement(Object ob) method 
// of Vector 

import java.util.*;

public class RemoveElementOfVector {
 public static void main(String[] args) {
  // Instantiates a Vector object  with
  // initial capacity of "10"
  Vector < String > v = new Vector < String > (10);

  // By using add() method is to add the
  // elements in this v
  v.add("C");
  v.add("C++");
  v.add("JAVA");
  v.add("C++");
  v.add("JAVA");

  // Display Vector and ArrayList
  System.out.println("v: " + v);

  // By using removeElement(JAVA) method is
  // to remove the first occurrence of the 
  // given object i.e. first JAVA object 
  // indicates the index "2"
  v.removeElement("JAVA");

  // Display updated Vector
  System.out.println("v.removeElement(JAVA): " + v);
 }
}

Output

v: [C, C++, JAVA, C++, JAVA]
v.removeElement(JAVA): [C, C++, C++, JAVA]