Check size of input - Site Owners Forums

ncjbhd · 09-28-2011, 11:41 PM

How would i go about checking the length of the input the user has put into a text field...

What I want to be able to do is check if what they have entered is between 3 and 20 characters long.. then if its less than 3 or more than 20 use an alert to tell them they must enter a username between 3 and 20 characters.

Thanks

Spoint_Vinil · 10-10-2011, 10:08 PM

use text.length property

a.oprea · 10-22-2011, 01:25 AM

public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
String x;
System.out.print("Input text -> ");
x = scan.nextLine();
while(x.length() < 3 || x.length() >20) {
System.out.print("Word length must be between 3 and 20 -> ");
x = scan.nextLine();
}
System.out.println("Text length: " + x.length());
}

Something like this i asume?

leonidasbourne · 12-07-2011, 11:36 PM

You have to check variable length or textbox character length right, than you get text from text box and store it in variable and check its length properties, easily you will find out length of text.

madhuriarora · 02-22-2012, 04:47 AM

We can check the length of the input easily be using some syntax like
text.length.

seo123 · 05-21-2012, 05:59 AM

hey i agree with you my friend.

alligatortek001 · 02-26-2014, 03:10 AM

Quote:

Originally Posted by ncjbhd

How would i go about checking the length of the input the user has put into a text field...

What I want to be able to do is check if what they have entered is between 3 and 20 characters long.. then if its less than 3 or more than 20 use an alert to tell them they must enter a username between 3 and 20 characters.

Thanks

You may use the "text.length" property

09-28-2011, 11:41 PM	#1
ncjbhd Registered User Join Date: Jul 2011 Posts: 262	Check size of input How would i go about checking the length of the input the user has put into a text field... What I want to be able to do is check if what they have entered is between 3 and 20 characters long.. then if its less than 3 or more than 20 use an alert to tell them they must enter a username between 3 and 20 characters. Thanks __________________ Rosetta Stone English Rosetta Stone Japanese

10-10-2011, 10:08 PM	#2
Spoint_Vinil Moderator Join Date: Sep 2011 Location: INDIA Posts: 250	use text.length property __________________ Boat Repairing \| Marine Equipment and Supplies

10-22-2011, 01:25 AM	#3
a.oprea Registered User Join Date: Jul 2011 Posts: 49	public static void main(String[] args) { Scanner scan = new Scanner(System.in); String x; System.out.print("Input text -> "); x = scan.nextLine(); while(x.length() < 3 \|\| x.length() >20) { System.out.print("Word length must be between 3 and 20 -> "); x = scan.nextLine(); } System.out.println("Text length: " + x.length()); } Something like this i asume? __________________ Free Ecards Thanksgiving Cards

12-07-2011, 11:36 PM	#4
leonidasbourne Registered User Join Date: Nov 2011 Posts: 48	You have to check variable length or textbox character length right, than you get text from text box and store it in variable and check its length properties, easily you will find out length of text. __________________ people finder

02-22-2012, 04:47 AM	#5
madhuriarora Registered User Join Date: Dec 2011 Posts: 217	We can check the length of the input easily be using some syntax like text.length. __________________ Talent show \| swiss watch \| haridwar to badrinath

05-21-2012, 05:59 AM	#6
seo123 Registered User Join Date: Sep 2011 Posts: 113	hey i agree with you my friend. __________________ bathroom contractors \|building retaining walls \|landscaping retaining walls

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