How can I prevent java.lang.NumberFormatException: For input string: “N/A”?

“N/A” is not an integer. It must throw NumberFormatException if you try to parse it to an integer. Check before parsing or handle Exception properly. Exception Handling try{ int i = Integer.parseInt(input); } catch(NumberFormatException ex){ // handle your exception … } or – Integer pattern matching – String input=…; String pattern =”-?\\d+”; if(input.matches(“-?\\d+”)){ // any … Read more

What is a NumberFormatException and how can I fix it?

Error Message: Exception in thread “main” java.lang.NumberFormatException: For input string: “Ace of Clubs” at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65) at java.lang.Integer.parseInt(Integer.java:580) at java.lang.Integer.parseInt(Integer.java:615) at set07102.Cards.main(Cards.java:68) C:\Users\qasim\AppData\Local\NetBeans\Cache\8.1\executor-snippets\run.xml:53: Java returned: 1 means: There was an error. We try to give you as much information as possible It was an Exception in main thread. It’s called NumberFormatException and has occurred for input … Read more