Array Doesn't Change From Default Entries

I have a 2d array that i am manipulating. In my class i have a constructor that takes the dimensions of the array and within th econstructor i need to randomly fill the array. However, when i try to manipulate it in the test program, all that prints out are the default values.

here is the class

import java.util.*;
import java.lang.Math;
import java.util.Arrays;
import java.util.Random;
class SummerStats

[Code] .....

And here is the printout

Enter number of rows(people):
3
Enter number of columns(years):
3
Enter number of person to find sum salary:
1
Enter year to find Max salary of that year:
1
[]
[]
The max salary is at index: (0, 0, )
The largest salary ocurred in year: 0
The sum of person 1 is: 0.0
The total of all salaries is: $0.0
The max salary in year 1 is: 0.0
The average salaries for each year:
0.0, 0.0, 0.0,

The total salary for each person is recorded below.

And the last method called doesn't finish or printout ie the program doesnt end