Hello I need help to to add modify the program to process as

Hello, I need help to to add modify the program to process as many telephone numbers as the user wants and also to improve/simply my final output to fulfill this requirement - The output should display a hyphen after the first 3 digits and subsequently a hyphen (-) after four digits. My program below: import java.util.*; public class teleAlphaTwo { public static void main(String [] args) { Scanner gaz = new Scanner (System.in); int length, num; int count=0; String letters, output=\"\"; System.out.println(\"Please type the words to be converted to a phone number:\"); letters = gaz.nextLine().toLowerCase(); length = letters.length(); for (num=0; num<=length-1; num++) { switch (letters.charAt(num)) { case \'a\': case \'b\': case \'c\': output+=\"2\"; count++; break; case \'d\': case \'e\': case \'f\': output+=\"3\"; count++; break; case \'g\': case \'h\': case \'i\': output+=\"4\"; count++; break; case \'j\': case \'k\': case \'l\': output+=\"5\"; count++; break; case \'m\': case \'n\': case \'o\': output+=\"6\"; count++; break; case \'p\': case \'q\': case \'r\': case \'s\': output+=\"7\"; count++; break; case \'t\': case \'u\': case \'v\': output+=\"8\"; count++; break; case \'w\': case \'x\': case \'y\': case \'z\': output+=\"9\"; count++; break; default: output=output; break; } System.out.println(\"The phone number is \"+output.substring(0, 3)+\"-\"+output.substring(3, 7)+\"-\"+output.substring(7, 11)+\"-\"+output.substring(11, 15)); } } }

Solution

Java Code:

import java.util.Scanner;

public class TeleAlphaTwo {
public static void main(String [] args) {
       Scanner gaz = new Scanner(System.in);
       int length=0;
int count=0;
       String letters, output=\"\";
       System.out.println(\"Please type the words to be converted to a phone number:\");
       letters = gaz.nextLine().toLowerCase();
  
       for(int num=0;num<letters.length();num++){
  
           switch (letters.charAt(num)) {
               case \'a\': case \'b\': case \'c\': output+=\"2\"; count++; break;
               case \'d\': case \'e\': case \'f\': output+=\"3\"; count++; break;
               case \'g\': case \'h\': case \'i\': output+=\"4\"; count++; break;
               case \'j\': case \'k\': case \'l\': output+=\"5\"; count++; break;
               case \'m\': case \'n\': case \'o\': output+=\"6\"; count++; break;
               case \'p\': case \'q\': case \'r\': case \'s\': output+=\"7\";count++; break;
               case \'t\': case \'u\': case \'v\': output+=\"8\"; count++; break;
               case \'w\': case \'x\': case \'y\': case \'z\': output+=\"9\"; count++; break;
               default: output=output; break;
           }
          
       }
int itval=1;String newoutput= output.substring(0,3)+\"-\";

for(int i=3;i<output.length();++i){
if((3+(4*itval))==i){
newoutput += \"-\";
itval++;
}
newoutput += output.charAt(i);
  
}
System.out.print(\"The phone number is \"+newoutput);
   }
}

Output:

Please type the words to be converted to a phone number:
bharathkuma
The phone number is 242-7284-5862