Write a java program which: 1. Asks the user to enter a positive integer greater

Question

Write a java program which:

1. Asks the user to enter a positive integer greater than 0

2. Validates that the entry is a positive integer

3. Outputs the digits in reverse order with a space separating the digits

4. Outputs the even digits not in reverse order with a space separating the digits (consider zero to be even)

5. Outputs the odd digits not in reverse order with a space separating the digits

6. Allows user is to repeat/continue the program as many times as he/she wants

7. Keeps a record in a txt file named outDataFile.txt with the history of all numbers entered and the associated results,

in the following format:

the original number is 1023

the number reversed 3 2 0 1

the even digits are 0 2

the odd digits are 1 3

-----------------

the original number is 102030

the number reversed 0 3 0 2 0 1

the even digits are 0 2 0 0

the odd digits are 1 3

-----------------

Explanation / Answer

Program

import java.util.Scanner;
public class Numbers {
   public static void main(String arg[]){
       Scanner sca=new Scanner(System.in);
       int n,num,i,j;
       System.out.print("Enter number : ");
       n=sca.nextInt();
       num=n;
       int even[]=new int[10];
       int odd[]=new int[10];
       System.out.println("The original number is "+n);
       System.out.print("The number reversed ");
       int x;
       i=0;
       j=0;
       while(num>0){
           x=num%10;
           if(x%2==0)
               even[i++]=x;
           else
               odd[j++]=x;
           System.out.print(x+" ");
           num/=10;
       }
       System.out.print(" The even digits are ");
       for(int k=i-1;k>=0;k--)
           System.out.print(even[k]+" ");
       System.out.print(" The even digits are ");
       for(int k=j-1;k>=0;k--)
           System.out.print(odd[k]+" ");
          
   }
}

Result:

Enter number : 1023
The original number is 1023
The number reversed 3 2 0 1
The even digits are 0 2
The even digits are 1 3

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.