How to check an input number?

Hi!Just want to know how I'm going to do to check that an input number is an int? And not a float, String etc.If the input number isn't an int, I want the program to shut down!/Mike

[211 byte] By [micottoa] at [2007-10-2 2:08:04]

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# 1

Integer.parseInt() will throw an exception if the String it parses does not contain a parsable int.

stdunbara at 2007-7-15 19:49:31 >

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# 2

Ok, but if I want to write the "wrong messages" myself!

micottoa at 2007-7-15 19:49:31 >

# 3

How about something like...

String inputString;

// read into inputString somehow

int value;

try {

value = Integer.parseInt( inputString );

} catch( NumberFormatException nfe ) {

System.err.println( "the inputString does not contain an integer" );

}

stdunbara at 2007-7-15 19:49:31 >

# 4

look here http://java.sun.com/developer/JDCTechTips/2001/tt1120.htmlfor validating the input in a text field

kris.richardsa at 2007-7-15 19:49:31 >

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How to check an input number?

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