integer size in java code example

Example 1: how to get length of integer in java

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

Example 2: how to get length of integer in java

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

Example 3: what are the primitive types java

Primitive types are the most basic data
types available within the Java language. 
Some of them are boolean , byte , char ,
short , int , long , float and double . 
These types serve as the building blocks
of data manipulation in Java.