Count tabs in empty end of line

Question

I dont know if my question makes sense or not, but i am facing this problem

Case 1:

String fileLine  ="->->->6";
System.out.println(fileLine.split("\t").length);

output: 4

Case 2:

String fileLine  ="1->->->6";
System.out.println(fileLine.split("\t").length);

output: 4

The Problem Case:

String fileLine  ="1->6->->";
System.out.println(fileLine.split("\t").length);

output: 2

Can anyone tell me why is that and to capture this situation?

I want to capture the tabs in the end of the line as well even if the file end is empty

Thanks