Count the digits in the number

Question

1 5 3 2 1 3 2=7

Answer 1

take a number , divide it by 10 , u will lose each digit from the end
ie ,
int x=1234; //u can also take this value using scanner
int n=0
while (x !=0)
{
x/=10; //it will remove last digit form the number
n++;
}
System.out.print(n);

now use some logic of ur own ,, & make answer to ur other 2 questions also ..