String[] split = input.split("\n");
Vector nonEmpty = new Vector();
for (int i = 0; i < split.length; i++)
{
String trimmed = split[i].trim();
nonEmpty.add(trimmed);
}
String output = "";
for (int i = 0; i < nonEmpty.size(); i++)
{
output = output + "ncbi-geneid:" + (String) (nonEmpty.elementAt(i) + "\n");
}
input
output