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import java.util.Vector;
public class Main {
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"));
}
}
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