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Checking for Position from End

public  int lastIndexOf(Object element) public int lastIndexOf(Object element, int index) These methods use equals() to check for equality. Return -1 if not found. The lastIndexOf() reports the position from the beginning, but starts at the end. import java.util.Vector; public class MainClass {   static String members[] = { "A", "I", "C", "D", "E", "F", "G", "H", "I", "J" };   public static void main(String args[]) {     Vector v = new Vector();     for (int i = 0, n = members.length; i < n; i++) {       v.add(members[i]);     }     System.out.println(v);     System.out.println(v.lastIndexOf("I"));   } } [A, I, C, D, E, F, G, H, I, J] 8