Java : Collection Framework : Vector (setsize method)

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VectorExample.java

import java.util.Vector;

/*
 *  Example of setSize(int newSize) method. 
 */
public class VectorExample
{
    public static void main( String[] args )
    {
        Vector<Integer> vector = new Vector<Integer>();

        vector.add(20);
        vector.add(30);
        vector.add(40);
        vector.add(50);

        System.out.println("vector  : " + vector );

        System.out.println("vector size  : " + vector.size() + "\n");

        /*
         * Sets the size of this vector. If the new size is greater than the
         * current size, new null items are added to the end of the vector. If
         * the new size is less than the current size, all components at index
         * newSize and greater are discarded.
         */

        vector.setSize(10);
        System.out.println("vector  : " + vector + "\n");

        vector.setSize(2);
        System.out.println("vector  : " + vector + "\n");

    }
}

Output

vector  : [20, 30, 40, 50]
vector size  : 4

vector  : [20, 30, 40, 50, null, null, null, null, null, null]

vector  : [20, 30]

To Download VectorDemoSetSize Project Click the below link
https://sites.google.com/site/javaee4321/java-collections/VectorDemoSetSize.zip?attredirects=0&d=1

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