How can I prevent java.lang.NumberFormatException for input string N/A?

Question

Below is the I get this error NumberFormatException when I run my code :

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 Source)

    at java.util.TreeMap.put(Unknown Source)

    at java.util.TreeSet.add(Unknown Source)`

Can anyone tell me why I’m getting the error and how to fix this? 

Answer 1

You get NumberFormatException, because “N/A” is not an integer when you try to parse it to an integer. Check the Exception handling below: 

try{

    int my_int = Integer.parseInt(input);

} catch(NumberFormatException ex){    

...

}

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