numberformatexception

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 6 years ago . While running my code I am getting a NumberFormatException : java.lang.NumberFormatException: For input string: \"N/A\" at java.lang.NumberFormatException.forInputString(Unknown Source) at java.lang.Integer.parseInt(Unknown Source) at java.lang.Integer.valueOf(Unknown Source) at java.util.TreeMap.compare(Unknown

问题 This question already has answers here : What is a stack trace, and how can I use it to debug my application errors? (7 answers) Closed 11 months ago . 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\