in JAVA Jagged Array recall that in Java 2D arrays are jagge

in JAVA: Jagged Array: recall that in Java 2D arrays are jagged in the sense that each row can have a different length. Write a program that takes an integer 2D array as input and returns the mean of it values.

Solution

   public Double getMean(Integer[][] input) {
// Your code goes here
        

Double mean = 0.0;
       int total = 0;
       int count = 0;
       for(int i=0; i<input.length; i++){
           for(int j=0; j<input[i].length; j++){
               total = total + input[i][j];
               count++;
           }
       }
       mean = total/(double)count;
       return mean;
   }