Java Vector clear( ) Method with Example

Java Vector clear( ) Method with Example

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In the previous article, we have discussed about Java Vector size( ) Method with Example

In this article, we are going to see the use of Java Vector clear() method along with examples.

Java Vector clear( ) Method with Example

This java.util.Vector.clear() method removes all elements from the vector. Its return type is void.

Syntax:

vectorName.clear( );

Where,

  • vectorName refers to the name of the Vector.

Approach:

  • Create a vector of string data type and add some elements to it.
  • Print the elements.
  • Now using clear( ) method remove all elements from the vector.
  • Print the vector elements after remove all elements.

Program:

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("One");
       vec.add("Two");
       vec.add("Three");
       vec.add("Four");
       vec.add("Five");
       vec.add("Six");
       vec.add("Seven");
       // Prints the vector elements
       System.out.println("The vector elements are "+vec);
       // Clearing all elements from the vector
       vec.clear();
       // Prints the vector elements
       System.out.println("The vector elements after clear() are "+vec);
   }
}

Output:

The vector elements are [One, Two, Three, Four, Five, Six, Seven]
The vector elements after clear() are []

Enhancing programming skills is very important no matter what language you have chosen. So, practice frequently with these simple java programs examples and excel in coding the complex logic.

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