[Solved] Need help! How to solve this exception

If request parameter age is empty, not a number, or missing altogether, you cannot convert it to a number. You’ll have to decide what to do in such situation, then do it in the cases mentioned above, i.e.: Check the parameter for non-emptiness Surround the conversion with try { … } catch (NumberFormatException e) { … Read more

[Solved] java.lang.NumberFormatException: Invalid int: “24 pm” [closed]

You can do the following : if (time != null && !time.equals(“”)) { StringTokenizer st = new StringTokenizer(time, “:”); String timeHour = st.nextToken(); String timeMinute = st.nextToken(); timePickDialog = new TimePickerDialog(v.getContext(), new TimePickHandler(), Integer.parseInt(timeHour), Integer.parseInt(timeMinute.replace(” am”,””).replace(” pm”,””)), true); } to replace both ” am” and ” pm” with “”. 5 solved java.lang.NumberFormatException: Invalid int: “24 … Read more

[Solved] NumberFormatException error from reading a file

Ok, I think converting string into Integer and then typecasting it to double is causing the error. Why don’t you just convert the string to double. Also you must trim the line while reading it to avoid any spaces. String holderStr = br.readLine().trim(); System.out.println(holderStr); totalBalNum = Double.parseDouble(holderStr); 2 solved NumberFormatException error from reading a file