import static java.lang.System.*;
import java.math.*;
class ArrCloneTest01 {
  public static void main(String[] aa) {
    new ArrCloneTest01().go();
  }
  void go() {


    // .......................
    BigInteger[] ba = { new BigInteger("10"), new BigInteger("20"), new BigInteger("30") }; // autoboxing
    BigInteger[] bb = ba.clone();
    ba[2]=new BigInteger("11");

    out.println("\nba[]: "+ba);
    for(BigInteger x:ba) out.println(x);

    out.println("\nbb[]: "+bb);
    for(BigInteger x:bb) out.println(x);

    out.println("\n---------");
    
    // ......................

    Element[] ea = { new Element(10), new Element(20), new Element(30) };
    ea[0].name="Ne";
    ea[1].name="Ca";
    ea[2].name="Zn";
    Element[] eb = ea.clone();

    ea[2].mass=79;
    ea[2].name="Au";

    out.println("\nea[]: "+ea);
    for(Element x:ea) out.println(x);

    out.println("\neb[]: "+eb);
    for(Element x:eb) out.println(x);

  }
  static class Element{
    private int mass;
    private String name="element";
    Element(int m) { mass = m; }
    public String toString() { return name+" "+mass; }
  }
}

ba[]: [Ljava.math.BigInteger;@18a992f
10
20
 11 

bb[]: [Ljava.math.BigInteger;@1fc4bec
10
20
 30 

---------

ea[]: [LArrCloneTest01$Element;@1bab50a
Ne 10
Ca 20
 Au 79 

eb[]: [LArrCloneTest01$Element;@c3c749
Ne 10
Ca 20
 Au 79