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

I just wrote something similar, so here is a version that

• uses generics so that it works on ints, strings etc,
• uses extension methods
• comes with a test class

Enjoy :)

[TestClass]
public class MiscTests
{
    [TestMethod]
    public void TestSwap()
    {
        int[] sa = {3, 2};
        sa.Swap(0, 1);
        Assert.AreEqual(sa[0], 2);
        Assert.AreEqual(sa[1], 3);
    }
}

public static class SwapExtension
{
    public static void Swap(this T[] a, int i1, int i2)
    {
        T t = a[i1]; 
        a[i1] = a[i2]; 
        a[i2] = t; 
    }
}