Java has 8 digit in number

To check if a number has 8 digits, you can use the length() method from the String class to get the length of the number as a string and compare it to 8.

Here's an example of how you can check if a number has 8 digits in Java:

int number = 12345678;
if (String.valueOf(number).length() == 8) {
    System.out.println("Number has 8 digits");
} else {
    System.out.println("Number does not have 8 digits");
}

This code converts the number to a string using the valueOf() method and then gets the length of the string using the length() method. It compares the length to 8 and prints a message depending on the result.

You can use a similar approach in other programming languages by converting the number to a string and getting the length of the string.

Note that this approach only works for positive integers. If you need to handle negative numbers or decimals, you may need to use a different approach, such as using regular expressions or string manipulation.