Regarding Float.parseFloat method

Hi,
i have two text boxes,one is Quantity another Price i want Qantity as integer and Price as float while giving input.
if user giv other than those i need to display error for that i done for Integer.parseInt(getparameter(..)) for this if the string is not int,it raising exception but for Float.parseFloat(getparameter(..)) for this it is not raising any exception.i am not getting what is the reason for that
Thanks in advance
nagaraju

if(this.price==null||this.price.equals(""))
ActionError ae1=new ActionError("pricereq");
aes.add("price",ae1);
else{
*try{*
*System.out.println(this.price);*
*Float.parseFloat(this.price);*
*catch(Exception e)*
*ActionError ae2=new ActionError("pricenotfloat");*
*aes.add("price",ae2);*
}I wrote that code in struts to validate the form, in that when i entered the integer value in price text field it must show price must be float. but exception not raising in that highleted part
i w

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Error Converting "1,300" to Float using Float.parseFloat()

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Null pointer Exception with Float.parseFloat

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'kill' me.
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Hi Narendran, thanks for your help,
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jawatch wrote:
@kajbj :
but i have overridden static method mm()No, you haven't. You've hidden it. Overriding only applies to non-private, non-final, non-static methods, and they are the only case where you can see the kind of polymorphism you're talking about.

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How to extract an integer or a float value from a String of characters

Hi i have a problem getting to a float value within a string of characters..
for instance the string is
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how do i store 700.0 in a float variable
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Edited by: badmash on Feb 18, 2009 5:50 PM
Edited by: badmash on Feb 18, 2009 5:50 PM
Edited by: badmash on Feb 18, 2009 5:55 PM

badmash wrote:
Hi i have a problem getting to a float value within a string of characters..
for instance the string is
"numberItem xxxxxxxxx 700.0" (each x is a space..the forum wouldnt let me put normal spaces for some reason)
with the space included
how do i store 700.0 in a float variable
remember the string is obtained from an inputfile
so far i got the program to store the inputfile data line by line in a String array..i tried tokenizing the string to get to the the float value but since i have mulitple spaces within my string, the token method only gets "numberItem" from the above StringHuh?
Not true.
Anyway why not use string split, split on spaces and grab the last element (which by the format you posted would be your 700.0)
Then there is the Float.parseFloat method.
It is easy.
And another thing why not use a List of Strings if you want to store each line? (And why did you post that code which doesn't really have anything to do with your problem?) Also in future please use the code formatting tags when posting code. Select the code you are posting in the message box and click the CODE button.

Help!How to analyse a String?

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Hi! Here's how you can implement some methods of your own. The following methods checks if the given string represents an integer.
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Regarding Float.parseFloat method

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