Question

flowchart to reverse digits of an integer

Answer 1

Cast to string -> reverse string (most libraries have good string functions) , cast back to int.

Answer 2

If its a decimal number you could use modulus function to return the first lowest digit in the integer like 45%10 would give you a 5. Doing that recursively would give you the number reversed.

Flow: (example 123)


num = 123
loop
print num%10 (prints 3)
num = num/10 (num now is 12 - integer division removes remainder)
end loop

result : 321

Answer 3

do it recursively:

method(number)
{
if(number > 1) ///Base Case
{
digit = pull off the last digit
newNum = the number without the first digit
return digit + method(newNum
}
return number;
}