Write a Java method that sums all the numbers in the major diagnol in a matrix o

Question

Write a Java method that sums all the numbers in the major diagnol in a matrix of double values. Consider that m is a square matrix and not null write your code with the following header:
Public static double sumMajorDiagnol(double [ ] [ ] m) Write a Java method that sums all the numbers in the major diagnol in a matrix of double values. Consider that m is a square matrix and not null write your code with the following header:
Public static double sumMajorDiagnol(double [ ] [ ] m)
Public static double sumMajorDiagnol(double [ ] [ ] m)

Explanation / Answer

/*
* method that sums all the numbers in the major diagnol
* in a matrix of double values
*/

public static double sumMajorDiagnol(double [ ] [ ] m) {
   int sz = m.length; //number of rows
   sz = m[0].length<sz?m[0].length:sz; //Matrix must have 1 row, and all rows of the matrix have same same number of column
   double sum = 0;
   for (int i =0; i<sz; i++)
       sum += m[i][i];
   return sum;
}

Hello champ. This code should work under all normal conditions. I have commented the code to make your life easy. If incase you are facing any trouble, please comment below. I shall be glad to help you.

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