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+34 votes
asked in CSC285_Fall2018 by (2.3k points)

1 Answer

+14 votes

You can use the static method parseInt(String) in Integer class that will throw an number format exception if you did not pass a numeric String. We can catch the exception and print out the message or return the boolean value.

You can also use the classes listed in this link: https://stackoverflow.com/questions/1102891/how-to-check-if-a-string-is-numeric-in-java
... to use the method, but I don't think it is available in our Eclipse right now.

answered by (2.1k points)