UDF to generate 4-Digit Positive Random Number

[Former Member]

Hi,

I want to generate 4-Digit Positive Random Number in the Mapping for a field. Could anyone please provide Inputs or a UDF.

Regards,

Varun

[santhosh_kumarv · Accepted solution]

Hi,

Instead of UDF.. you can do this... Use the standard function current date which will return date and time.... pass this to the standard String function to substring and use it..

~SaNv...

[varun_k]

This is the UDF I have Used

java.util.Random randomNumber;

String TransactionId = "" ;

randomNumber = new Random();

long longNumber = randomNumber.nextLong();

if (longNumber < 0)

{

longNumber = longNumber * (-1);

}

longNumber += 10000;

TransactionId = (String.valueOf(longNumber)).substring(0, 4);

return TransactionId ;

Thanks everyone for your Inputs

[Former Member]

you can try this also

int x = (int)(Math.random() * 9999)+1000

random()

Returns a double value with a positive sign, greater than or equal to 0.0 and less than 1.0.

[Former Member]

use Random class from package java.util

Random:

Random is the class of java.util.*; package. This class is used to create a random number

nextInt():

This method returns a random number in random number generator's sequence. If you pass a value to the method then the method return the random number in the mentioned range otherwise it will generate the random number in sequence according to the random number generator.

[Shabarish_Nair]

try

import java.util.Random;
 Random generator = new Random();
int random_number = generator.nextInt(9999) + 1000;

[former_member750652]

Hi Varun,

You can use Current time and date or combination of time,date and any numeric field from payload.Define some mathematical calculation in UDF and truncate it in the UDF it self to 4 digits using substring.Even while writing UDF you need to convert the values from string to Integers and perform calculations as UDF takeas inputs as String values.

Thanks,

Ram.