I think below code hip you
string s1 = "jersey";
string s2 = "jry";
string final = string.Empty;
char[] aa = s1.ToCharArray();
foreach (char aaa in aa)
{
final = final + "*";
}
char[] bb = s2.ToCharArray();
int startindex=0;
foreach (char bbb in bb)
{
foreach (char aaa in aa)
{
if (s1.IndexOf(bbb, startindex) > -1)
{
final = final.Remove(s1.IndexOf(bbb, startindex), 1);
final = final.Insert(s1.IndexOf(bbb, startindex), bbb.ToString());
startindex = s1.IndexOf(bbb, startindex) + 1;
}
}
}
Response.Write(final);