Iterating column names

[DrGenious]

Hey, 

Is there anyway to iterate column names ? 

Basically I want to parse this code into talend. As you can see fieldName is a variable who goes through column names and when it is compliant it parses its value into r variable.

if (fieldName.equalsIgnoreCase("ip")) {
r = fieldValue;
}
else if (fieldName.indexOf("submask")>=0 ) {
r = fieldValue;
}
else if (fieldName.indexOf("mac" ) >=0){
r= fieldValue;

}

Please help me. Thanks a lot

[TRF]

From where are you getting column names?
Give an example.

[DrGenious]

@TRF 

Thanks for your quick response.

This is only what i have. If it doesnt help, its ok . I create a tfileinputdelimited with the column names ip, submask and mac but I dont know how to make the search with the column names in order to parse the column's value into r.