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About Ilias Tsagklis

Ilias Tsagklis
Ilias is a software developer turned online entrepreneur. He is co-founder and Executive Editor at Java Code Geeks.

Remove all elements from Vector example

With this example we are going to demonstrate how to remove all elements from a Vector. We are using clear() API method of Vector. In short, to remove all elements from a Vector you should:

  • Create a new Vector.
  • Populate the vector with elements, with add(E e) API method of Vector.
  • Invoke clear() API method of Vector. The method removes all of the elements from this Vector. The Vector will be empty after this call returns.

Let’s take a look at the code snippet that follows:
 

package com.javacodegeeks.snippets.core;
 
import java.util.Vector;
 
public class ClearVectorExample {
 
  public static void main(String[] args) {
 
    // Create a Vector and populate it with elements
    Vector vector = new Vector();
    vector.add("element_1");
    vector.add("element_2");
    vector.add("element_3");
 
    System.out.println("Vector size before removing elements : " + vector.size());

    // Vector clear() operation removes all elements
    vector.clear();

    System.out.println("Vector size after removing elements : " + vector.size());
 
  }
}

Output:

Vector size before removing elements : 3
Vector size after removing elements : 0

 
This was an example of how to remove all elements from a Vector in Java.

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