Design a function int maxDigit (int num) to find and return the greatest digit from the arguments value num. Also write a function void result() by passing parameters to print the greatest digit.
please tell in java programming​

Below is the required JAVA Code:

Explanation:

public static int largestDigit(int n) {

   if (n < 0) {

       return largestDigit(-1 * n);

   } else if (n == 0) {

       return 0;

   } else {

       int digit = n % 10;

       int maxDigit = largestDigit(n / 10);

       if (digit > maxDigit)

           maxDigit = digit;

       return maxDigit;

   }

}

\color{red}Method\;tested\;in\;a\;complete\;java\;program\;if\;you\;are\;interested.

public class LargestDigitRecursive {

   public static int largestDigit(int n) {

       if (n < 0) {

           return largestDigit(-1 * n);

       } else if (n == 0) {

           return 0;

       } else {

           int digit = n % 10;

           int maxDigit = largestDigit(n / 10);

           if (digit > maxDigit)

               maxDigit = digit;

           return maxDigit;

       }

   }

   public static void main(String[] args) {

       System.out.println(largestDigit(14263203));

       System.out.println(largestDigit(845));

       System.out.println(largestDigit(52649));

       System.out.println(largestDigit(3));

       System.out.println(largestDigit(0));

       System.out.println(largestDigit(-573026));

       System.out.println(largestDigit(-2));

   }

}

OUTPUT:

6

8

9

3

0

7

2

explanation:

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where is the graph? post the graph then ill come back and