/* package whatever; // don't place package name! */
import java.util.*;
import java.util.regex.*;
import java.lang.*;
import java.io.*;
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
{
String pat
= "(?!^)\\.(?=[^.]*$)|(?<=^\\.[^.]{0,1000})$"; s = "MyFile.ext";
s = "Another.MyFile.ext";
s = "MyFile.";
}
}
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