Set size of Java Vector Example

/*
Set size of Java Vector Example
This Java Example shows how to set the size of Java Vector object using
setSize method. Size of the Vector can be changed anytime after creating it using
this method.
*/
import java.util.Vector;
public class SetSizeOfJavaVectorExample {
public static void main(String[] args) {
//create a Vector object
Vector v = new Vector();
//Add elements to Vector
v.add("1");
v.add("2");
v.add("3");
v.add("4");
v.add("5");
/*
To set the size of Vector use
void setSize(int newSize) method.
Please note that if the newSize is less than the current size of the Vector
elements at and after newSize index will be discarded, and if the newSize is
grater than the current size of Vector, null values are added at the end of
the Vector.
*/
//set size of Vector to 3. The Last 2 elements would be discarded.
v.setSize(3);
//display elements of the Vector
System.out.println("Vector elements after setting size to 3");
for(int index=0; index < v.size(); index++)
System.out.println(v.get(index));
//set size of Vector to 5. null values would be inserted in the Vector.
v.setSize(5);
//display elements of the Vector
System.out.println("Vector elements after setting size to 5");
for(int index=0; index < v.size(); index++)
System.out.println(v.get(index));
}
}
/*
Output would be
Vector elements after setting size to 3
1
2
3
Vector elements after setting size to 5
1
2
3
null
null
*/