Consider an array of unique integers salary, where salary[i] is the salary of employee i. Return the average salary of employees, excluding the minimum and maximum salary. An example is below:

• Input: salary = {4000,3000,1000,2000}
• Output: 2500.0

In this example, the minimum and maximum salary are 1000 and 4000, respectively. The average salary, excluding the minimum and maximum salary, is (2000+3000)/2= 2500.

YOU MAY NOT USE LIBARATY METHODS SUCH AS Math.max or Math.min! Complete the method with the signature below.

public static double averageSalary(int[] salary) { ... }