how to add leading zero to a string or integer using groovy script

[JayKondra]

how to add leading zero to a string or integer using  groovy script

a = 12345

Result should be 0000012345 (Len = 10)

[richie]

Hi 
 
I'm not a groovy scripter - i'd like to be, but what i need is a absolutely no initial coding skills groovy course, which doesnt exist - so I tend to just steal snippets of what other people have given me and try and expand those with help - but isn't what you want just a simple concatenation?
 
Just considering how datatypes work - you wouldn't be able to maintain any leading zeros on an integer I wouldn't have thought cos the zero's would get dropped as 0000012345 = 12345 if numeric - so the values would have to be treated as a string.
 
my ridiculously poor coding skills have come up with the following:
 
a = "12345";
b = "00000";

log.info(b+a);
When I executed the above - the response was as follows:  
 
Sun Sep 23 12:12:21 BST 2018: INFO: 0000012345
 
Is this what you wanted? or have I missed something essential again?
 
Cheers,
 
richie

[Lucian]

hey,

check at https://community.smartbear.com/t5/SoapUI-Pro/zero-pad-string-in-groovy-script/m-p/162602#M36569

[HimanshuTayal · Accepted solution]

Hi @JayKondra

The Solution @Lucian has provided is the quickest and simple but it you want to do an elaborated solution, then you can try below code :

def a = 1234
def stringLen = 10
def strLen = a.toString().size()
expectedLen = stringLen.toInteger() - strLen.toInteger()
for(i = 0; i<=expectedLen-1;i++)
{
	a = "0" + a 
}

log.info a
log.info a.length()

Click "Accept as Solution" if my answer has helped, and remember to give "kudos" 🙂

Thanks and Regards,

Himanshu Tayal

[Radford · Accepted solution]

If you have an integer value, the Sting.format method linked by @Lucian is ideal, but regarding the other half of your question of padding strings...

Groovy strings have the several padding methods included:

• padRight
• padLeft
• center

So in your example, if the variable "a" was a string, you could do the following:

def a = "12345"
def zeroPaddedString = a.padLeft(10, "0")
log.info(zeroPaddedString)

The following link explains the padding functions in more details:

http://mrhaki.blogspot.com/2009/09/groovy-goodness-padding-strings.html