Generate Random Number for lotteries in Mega Millions format part 1 or 2

Below code will generate random number for lotteries in  Mega Millions or Power Ball format. Mega Millions and Power Ball are taken as examples only in this tutorial.

In Part 2 of this tutorial, we have discussed about different approach. Click here to go to part 2

package pkg_ABC;

import java.io.File;

import java.io.FileInputStream;

import java.util.Random;

import org.apache.poi.ss.usermodel.Row;

import org.apache.poi.ss.usermodel.Sheet;

import org.apache.poi.ss.usermodel.Workbook;

import org.apache.poi.xssf.usermodel.XSSFWorkbook;

public class Lucky_Numbers {

      

       public static void main(String[] args) throws Exception {

// Mega Millions have two set of numbers from which you have to pick your numbers. You have to pick first 5 numbers from the set 1 to 70. And the Mega Ball number from 1 to 25.

             

       int[] goodNumber = new int[5];   

      

       Random winningNumber = new Random();

       // For the first 5 random numbers

       for(int i=0; i < 5; i++)
       {

       int first_5_Numbers = winningNumber.nextInt(71); //This will generate random numbers in the range 0 to 70. To generate in power ball format, use nextInt(70) instead of nextInt(71).

       while(first_5_Numbers == 0) {

              first_5_Numbers = winningNumber.nextInt(71);

       }

       goodNumber[i] = first_5_Numbers;

       //The random numbers will be stored in below variables.

          //goodNumber[0] 1st lucky number  

          //goodNumber[1] 2nd lucky number   

          //goodNumber[2] 3rd lucky number

          //goodNumber[3] 4th lucky number

          //goodNumber[4] 5th lucky number

      

       System.out.println("Good Number_"+i+" = "+goodNumber[i]);

       }

    

             

       // For 6th number, this will be Mega Ball number if you compare this with Mega Millions.

      

       int sixthNumber= winningNumber.nextInt(26); //This will generate random numbers in the range 0 to 25. To generate in power ball format, use nextInt(27) instead of nextInt(26).

       while(sixthNumber == 0) {

              sixthNumber= winningNumber.nextInt(26); 

       }

       System.out.println("The 6th number = "+sixthNumber);

      

       //Now the lucky number is :

      

       System.out.println("The lucky number = "+goodNumber[0]+"  "+goodNumber[1]+"  "+goodNumber[2]+"  "+goodNumber[3]+"  "+goodNumber[4]+"  "+sixthNumber );

      

       }

      

}

OUTPUT:

Good Number_0 = 49

Good Number_1 = 13

Good Number_2 = 60

Good Number_3 = 21

Good Number_4 = 14

The 6th number = 13

The lucky number = 49  13  60  21  14  13