Question

write a program in Java to input a number and print the number in expanded form ​

Answer 1

Answer:

Here's the required answer

Answer 2

SOLUTION.

Here comes my approach for the problem.

import java.util.*;

public class ExpandedForm{

   public static void main(){

       System.out.print("Enter a number: ");

       int n=(new Scanner(System.in)).nextInt();

       if(n>-1&&n<=10)

           System.out.println("Expanded Form: "+n);

       else{

           String s="",zeros="";

           for(;n!=0;n/=10){

               int remainder=n%10;

               if(remainder!=0)

                   s=remainder+zeros+"+"+s;

               zeros+="0";

           }

           s=s.substring(0,s.length()-1);

           System.out.println("Expanded form: "+s);

       }

   }

}

SAMPLE I/O.

Enter a number: 99

Expanded form: 90+9

Enter a number: 98

Expanded form: 90+8

Enter a number: 49

Expanded form: 40+9

Enter a number: 58

Expanded form: 50+8

Enter a number: 2201

Expanded form: 2000+200+1

Enter a number: 440001

Expanded form: 400000+40000+1

Enter a number: 5604101

Expanded form: 5000000+600000+4000+100+1

Enter a number: 2

Expanded Form: 2

Enter a number: 1

Expanded Form: 1

Enter a number: 0

Expanded Form: 0

See the attachment for verification.