import java.util.Vector;
public class MainClass {
public static void main(String args[]) {
String members[] = { "A", "I", "C", "D", "E", "F", "G", "H", "I", "J" };
Object value = "I";
Vector v = new Vector();
for (int i = 0, n = members.length; i < n; i++) {
v.add(members[i]);
}
int index = 0;
int length = v.size();
while ((index < length) && (index >= 0)) {
index = v.indexOf(value, index);
if (index != -1) {
System.out.println(index);
index++;
}
}
}
}
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