In java Write a method that sums all the numbers in the major diagonal in an matrix of double values using the

following header:

public static double sumMajorDiagonal$($double$[][]$ m$)$

Write a test program that reads a $4-$by$-4$ matrix and displays the sum of all its elements on the major

diagonal. Here is a sample run: Enter a $4-$by$-4$ matrix row by row:

$1234\mathrm{.}0$

$56\mathrm{.}578$

$9101112$

$13141516$

Sum of the elements in the major diagonal is $34\mathrm{.}5$