How to change the value of array elements

Question

int A = 300;
int B = 400;
int C = 1000;
int D = 500;

int []abcd = {A,B,C,D};
Arrays.sort(abcd);   // the sequence of array elements will be {300, 400, 500,1000}
         


        

Answer 1

A naive way to do it would be to go through each element of the array, checking the values as you go:

for (int i = 0; i < abcd.length; i++)
{
    if (abcd[i] == A)
    {
        A = i+1;
    }
}
// Rinse and repeat for B, C, D

If going down this approach, of course, turn it into a function that accepts the array, the value to search for, and returns its index within the array.