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JavaRanch » Java Forums » Certification » Programmer Certification (SCJP/OCPJP)
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String..

Anonymous
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Joined: Nov 22, 2008
Posts: 18944
could anyone let me know how to check whether the string is an integer?
Thanks,
Jim Yingst
Wanderer
Sheriff

Joined: Jan 30, 2000
Posts: 18671
Integer.parseInt(String)
If the String doesn't represent an integer, the method will throw a NumberFormatException. Otherwise, it returns the value of the int. Similar methods exist in the other numeric wrapper classes as well - Float, Double, Long, etc.


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