Existing String to Double

Question

How can I change existing string into double. I have code like this declared as string but in reality its getting number from the database.. I was doing sting to number conversi

Answer 1

try {
  double d = Double.parseDouble(str);
  Double D = new Double(d);
}
catch( NumberFormatException e ) {
   // input cleansing
   // thou shalt not fail silently
}

Reference:

Double.parseDouble