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import java.util.Collections;
import java.util.Vector;
public class VectorSwap {
public static void main(String[] args) {
Vector<String> vect = new Vector();
vect.add("A1");
vect.add("A2");
vect.add("A3");
vect.add("A4");
vect.add("A5");
System.out.println(vect);
Collections.swap(vect, 0, 3);
System.out.println("After swapping");
System.out.println(vect);
}
}