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Write an application that creates and prints a random phone number of the form XXX-XXX-XXXX. Include the dashes in the output

ALGORITHM Store the phone number in a variable which is of String data type (String result = ) Create an object rand to gen

***** TO BE WRITTEN IN JAVA *****

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Answer #1

Please up vote ,comment if any query . Thanks for question .

Note : check attached image for output . code compiled and tested in netbeans java IDE.

No digit generated seprately . all three digit generated in single number.

Program : ************************Main.java**********************


import java.util.Random;


public class Main {

    //get random takes object of random
    //and random max min
    //min should be inclusive and max should be exclusive
    public static int getRandomNumber(Random random,int min, int max) {
       
        return random.nextInt(max - min) + min; //get random number
    }
  
    public static boolean checkEightInNumber(int number)
    {
        while(number!=0) //loop till number not zero
        {
            int r= number%10; //get reminder
            if(r==8) //if reminder is 8 return false
                return false;
            number/=10; //get quotient
        }
      
        return true; //if no digit is 8 return true
    }
    public static void main(String[] args) {
        Random random = new Random(); //Random number

            String phoneNumber=""; //String phone number
          
            String str="";
            int number= getRandomNumber(random,0,888); //get number
          
            while(checkEightInNumber(number)==false) //if its contain 8 again generate random
            {
                number= getRandomNumber(random,0,888);
            }
          
            if(number==0) //if number =0
            {
                str+="000";
            }
            else if(number<10)
            {
                str+="00"; //if number is 1 digit
                str+=String.valueOf(number);
            }
            else if(number<100) //if number 2 digit
            {
                str+="0";
                str+=String.valueOf(number);
            }
            else //else convert it into string
                str=String.valueOf(number);

          
            phoneNumber+=str; //add string to phone number
            phoneNumber+='-'; //append - dash
            phoneNumber+=String.valueOf(getRandomNumber(random,100,743)); //between 100-742
            phoneNumber+='-'; //apppend - dash
            phoneNumber+=String.valueOf(getRandomNumber(random,1000,10000)); //1000-9999
           
                System.out.println(phoneNumber);
           
           

    }
  
}

Output :

Output - Phone Number (run) X IN run: 051-331-4927 135-531-9431 409-693-6303 562-475-1075 010-213-9123 OR 214-639-9972 704-32

Please up vote ,comment if any query .

Please up vote ,comment if any query .

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