find the biggest integer from a digits set in java code example

Example 1: count the number of digits in an integer in java

import java.util.Scanner;
public class CountingDigitsInInteger {
   public static void main(String args[]){
      Scanner sc = new Scanner(System.in);
      int count = 0;
      System.out.println("Enter a number ::");
      int num = sc.nextInt();
      while(num!=0){
         num = num/10;
         count++;
      }
      System.out.println("Number of digits in the entered integer are :: "+count);
   }
}

Example 2: how to find the largest integer in java

int a = Integer.MAX_VALUE;