substring in a string

[lmit]

Hi All,

I have a input data which has a special character  like

"maths*science*English"

my ouput should have data like

science

English

the position of the special character is not fixed and I should consider the occurrence of special character based on the other column i.e., if the other column has data like 3 I should consider the 3rd occurrence of the special character.

Thanks in Advance,

Lmit 

[akumar2301]

Another simple solution 

Input  -- tjavarow -- Output

input

id,newColumn,pos

1,abc*dfec*eng,1
2, abc*dfec*eng*math,3

tjavarow 

output_row.id = input_row.id;

try {
output_row.result = input_row.newColumn.split("\\*")[input_row.pos];

}
catch ( Exception e ){
output_row.result = "Err - Not found";
}

Output 

id|result

1|dfec
2|math