java int number of digits code example

Example 1: how to get length of integer in java

int length = (int) (Math.log10(number) + 1);

Example 2: find number of digits in a number java

(int)Math.floor(Math.log10(Your_number_name_goes_here) + 1);

Example 3: how to get length of integer in java

int length = 0;
long temp = 1;
while (temp <= number) {
    length++;
    temp *= 10;
}
return length;