java.lang.NumberFormatException: Invalid int: “” : Error

Question

I am doing some calculation but unable to parse a string into int or even in float.I searched for solution and i read it somewhere there must be a empty string but i checked my

Answer 1

You are trying to parse an empty String ( "" ) to a numerical value, but "" is not a numerical value.

Make sure you set it to required, or check for emptiness before trying to parse it.

final int a = !height.equals("")?Integer.parseInt(height) : 0;

for instance.

EDIT:

If you have added spaces, so it would be " ";

height = height.trim();
final int a = !height.equals("")?Integer.parseInt(height) : 0;

should do the trick.