import java.util.ArrayList;
import java.util.Vector;

public class InsertOtherElements {

public static void main(String[] args) {
    // TODO Auto-generated method stub
    ArrayList arrayList = new ArrayList();
        arrayList.add("1");
        arrayList.add("2");
        arrayList.add("3");
       
        //create a new Vector object
        Vector v = new Vector();
        v.add("4");
        v.add("5");
       
        arrayList.addAll(1,v);
       
        for(int i=0; i<arrayList.size(); i++)
          System.out.println(arrayList.get(i));
}

}

Console：
1
4
5
2
3