How can I swap two values of an array in c#?

Question

I have an array of int containing some values starting from index 0. I want to swap two values for example value of index 0 should be swapped with the value of index 1. How

Answer 1

If you really only want to swap, you can use this method:

public static bool swap(int x, int y, ref int[] array){

        // check for out of range
        if(array.Length <= y || array.Length <= x) return false;


        // swap index x and y
        var buffer = array[x];
        array[x] = array[y];
        array[y] = buffer;  


        return true;
}

x and y are the indizies, that should be swapped.

If you want to swap with any type of array, then you can do it like this:

public static bool swap(this T[] objectArray, int x, int y){

        // check for out of range
        if(objectArray.Length <= y || objectArray.Length <= x) return false;


        // swap index x and y
        T buffer = objectArray[x];
        objectArray[x] = objectArray[y];
        objectArray[y] = buffer;


        return true;
}

And you can call it like:

string[] myArray = {"1", "2", "3", "4", "5", "6"};

if(!swap(myArray, 0, 1)) {
    Console.WriteLine("x or y are out of range!");
    return;
}