String a[] = { "1", "2" };
String b[] = { "3", "6" };
List aa = Arrays.asList(a);
List bb = Arrays.asList(b);
List cc = new ArrayList();
cc.addAll(aa);
cc.addAll(bb);
Object c[] = cc.toArray();
for (int i = 0; i < c.length; i++) {
System.out.println(c[i]);
}