import java.util.Scanner;classTest{publicstaticvoid main(String[] args){Scanner sc =newScanner(System.in);int num=sc.nextInt();System.out.println("Enter a number (-1 to end):"+num);int result=0;while(true){int n=num%10;if(n==-1){break;}System.out.println(n);
      result=result*10+n;
      num=num/10;if(
 
num==0){break;}}

}

}

result====================================================================================

Enter a number (-1 to end):3457↵Digit1=7Digit2=5Digit3=4Digit4=3Enter a number:23Digit1=3Digit2=2Enter a number:847570Digit1=0Digit2=7Digit3=5Digit4=7Digit5=4Digit6=8Enter a number:-1