Java Collection Tutorial - Java Vector.trimToSize()

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Syntax

Vector.trimToSize() has the following syntax.

public void trimToSize()

Example

In the following code shows how to use Vector.trimToSize() method.

/*from w w w  .  jav a2 s  .c o  m*/

import java.util.Vector;

public class Main {
   public static void main(String[] args) {
           
      Vector  vec = new Vector  (10);

      vec.add(4);
      vec.add(3);
      vec.add(2);
      vec.add(1);

      System.out.println("Size of the vector: "+vec.capacity());
      
      System.out.println("Trimming the vector");
      vec.trimToSize();
      
      System.out.println("Size of the vector: "+vec.capacity());
   }     
}

The code above generates the following result.

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