Question

How to find the highest digit in int number with Java

Answer 1

public class MyClass {
    public static int getTheHighestDigit(int n) {
        int max = 0;
        while (n != 0) {
            if (n % 10 > max) max = n % 10;
            n /= 10;
        }
        return max;
    }
    public static void main(String args[]) {
        int n = 213;
        System.out.println(getTheHighestDigit(n));
        
        n = 76594;
        System.out.println(getTheHighestDigit(n));
        
        n = 76582;
        System.out.println(getTheHighestDigit(n));
    }
}
 
 
 
 
/*
run:
 
3
9
8
 
*/

 

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