The elementAt(int index) method of java.util.Vector class will get you the element at the specified index whereas firstElement() method will get you the element at the index ‘0’(first element).
Signature
public E firstElement()
Retrieves the first element of the vector and will throw java.util.NoSuchElementException if the vector is empty.
Example
The following example shows the usage of java.util.Vector.firstElement() method.
import java.util.Vector; public class FirstElementMethodVectorExample { public static void main(String args[]) { // create an empty Vector Vector vector1 = new Vector(); // use add() method to add elements to the Vector vector1.add("Element1"); vector1.add("Element2"); vector1.add("Element3"); //Getting the first element of the vector System.out.println("First element of the Vector is : "+vector1.firstElement()); } }
Output
First element of the Vector is : Element1
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