public static void printKeyValues(String k, List<String> v, PrintStream ps) {
ps.print(k + " => ");
boolean first = true;
for (String val : v) {
if (!first) {
ps.print(", ");
}
first = false;
ps.print(val);
}
ps.println();
}
public void toFile(String file) {
try {
PrintStream ps = new PrintStream(new FileOutputStream(file), true);
ps.print(sw.toString());
} catch (Exception e) {
System.err.println(e.toString());
}
}