Generate Random Data(String,Date,Number,Domain,Email,Mobile Number)using java for Selenium WebDriver

Generating random data(String,Date,Number,Domain,Email,Mobile Number)using java which can be used for while designing selenium Scripts.

Please find below class code for the same.

Sample code:

package DriverMethods;

import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Random;

public class RandomDataMethods {

    public static final String ALPHA_CAPS  = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
    public static final String ALPHA   = "abcdefghijklmnopqrstuvwxyz";
    public static final String NUM     = "0123456789";
    public static final String SPL_CHARS   = "@$";

    public static ArrayList<String> domain;
public static Random randomGenerator;

    //Reusable Method for generate Domain names randomly.

  public static String pickDomain()

   {
   domain= new ArrayList<String>();
       randomGenerator= new Random();
     
       domain.add(".com");
       domain.add(".net");
       domain.add(".org");
       domain.add(".in");
       domain.add(".co");
       domain.add(".edu");
       int index = randomGenerator.nextInt(domain.size());
       return domain.get(index);
   }
 
     //Reusable Method for Generating Random Email 

  public static String generateEmail()
   {
  String email=null;
  char[] name = generateRandomData(3, 20, 1, 1, 0);
  char[] domain = generateRandomData(3, 20, 1, 1, 0);
 
  email=new String(name)+"@"+new String(domain)+pickDomain();
 
  return email;
   }

      //Reusable Method for Generating Random Mobile Number

public static String generateMobileNumber()
     {
    String mobileNumber=null;
    char[] number = generateRandomData(9, 9, 0, 9, 0);
   
    mobileNumber= "9"+new String(number);
   
    return mobileNumber;
     }

      //Reusable Method for Generate Random Number between maximum and minimum values

public static int getRandomNumberBetween(int min, int max) {
   
   Random foo = new Random();
       int randomNumber = foo.nextInt(max - min) + min;
       if(randomNumber == min) {
           // Since the random number is between the min and max values, simply add 1
           return min + 1;
       }
       else {
           return randomNumber;
       }

   }

  //Reusable Method for Generate Random Date from Start date to End Date

public static String generateRandomDate(String Format,String startDate,String endDate) throws java.text.ParseException
{
DateFormat formatter = new SimpleDateFormat(Format);
Calendar cal=Calendar.getInstance();
cal.setTime(formatter.parse(startDate));
Long value1 = cal.getTimeInMillis();

cal.setTime(formatter.parse(endDate));
Long value2 = cal.getTimeInMillis();

long value3 = (long)(value1 + Math.random()*(value2 - value1));
cal.setTimeInMillis(value3);
return formatter.format(cal.getTime());
      }

   //Reusable Method for Generating Random String

   public static char[] generateRandomData(int minLen, int maxLen, int noOfCAPSAlpha, int noOfDigits,int noOfSplChars)
   {
   
       if(minLen > maxLen)
           throw new IllegalArgumentException("Min. Length > Max. Length!");
       if( (noOfCAPSAlpha + noOfDigits +noOfSplChars) > minLen )
           throw new IllegalArgumentException
           ("Min. Length should be atleast sum of (CAPS, DIGITS, SPL CHARS) Length!");
       Random rnd = new Random();
       int len = rnd.nextInt(maxLen - minLen + 1) + minLen;
       char[] pswd = new char[len];
       int index = 0;
       for (int i = 0; i < noOfCAPSAlpha; i++)
       {
           index = getNextIndex(rnd, len, pswd);
           pswd[index] = ALPHA_CAPS.charAt(rnd.nextInt(ALPHA_CAPS.length()));
       }
       for (int i = 0; i < noOfDigits; i++)
       {
           index = getNextIndex(rnd, len, pswd);
           pswd[index] = NUM.charAt(rnd.nextInt(NUM.length()));
       }
       for (int i = 0; i < noOfSplChars; i++)
       {
           index = getNextIndex(rnd, len, pswd);
           pswd[index] = SPL_CHARS.charAt(rnd.nextInt(SPL_CHARS.length()));
       }
       for(int i = 0; i < len; i++)
       {
           if(pswd[i] == 0)
           {
               pswd[i] = ALPHA.charAt(rnd.nextInt(ALPHA.length()));
           }
       }
       return pswd;
   }

   public static int getNextIndex(Random rnd, int len, char[] pswd) {
       int index = rnd.nextInt(len);
       while(pswd[index = rnd.nextInt(len)] != 0);
       return index;
   }

                 //Usage

   public static void main(String args[]) throws ParseException  {
   
    System.out.println(RandomDataMethods.pickDomain());
    System.out.println(RandomDataMethods.generateRandomDate("dd MMM yyyy", "10 Aug 2016", "01 Sep 2017"));
    System.out.println(RandomDataMethods.generateEmail());
    System.out.println(RandomDataMethods.getRandomNumberBetween(5, 41));
    System.out.println(RandomDataMethods.generateMobileNumber());
    System.out.println(RandomDataMethods.generateRandomData(10, 11, 1, 1, 1));
   
   }
 

}