C#

private static int CompareProducts(Product x, Product y)
{
        if (x == null)
        {
            if (y == null)
            {
                // If x is null and y is null, they're equal. 
                return 0;
            }
            else
            {
                // If x is null and y is not null, y is greater. 
                return -1;
            }
        }
        else
        {
            // If x is not null...
            if (y == null) // ...and y is null, x is greater.
            {
                return 1;
            }
            else
            {
                // ...and y is not null, compare by whatever you want :-)
                // here we compare either by name if different, otherwise by quantity in stock
                if(x.Name == y.Name)
                    return x.QuantityInStock.CompareTo(y.QuantityInStock);
                else
                    return x.Name.CompareTo(y.Name);
            }
        }

}

producs.Sort(CompareProducts);

John Simmons / outlaw programmer wrote:

How do you do int, double, etc. without using ToString()?

list.Sort( (x,y) => x.Int.CompareTo(y.Int))

Thomas Stockwell wrote:

In .NET I believe the two are basically the same.

Thomas Stockwell wrote:

2) Close allows the .NET garbage collection engine to work on its own. Dispose forces garbage collection of a particular object. Basically memory management. (Dispose usually still gets called eventually in the close method, but behind the scenes)

public bool isMyAnswers(MSDN msdn)
{
    if (msdn.Website == <a href="http://msdn.microsoft.com/en-us/default.aspx">MSDN</a>[<a href="http://msdn.microsoft.com/en-us/default.aspx" target="_blank" title="New Window">^</a>]) // return true
    {
        bool answer1 = msdn.Search("==");
        bool answer2 = msdn.Search("Dispose");
        bool answer3 = msdn.Search("Object");
        bool answer4 = msdn.Search("SendKey.Send");
        msdn.Close(); // not Dispose();
    }
    if (answer1 && answer2 && answer3 && answer4)
        return true;
    return false;
}

E_Gold wrote:

what is the difference between == and Equals ?

int a = 5;
int b = 5;

if (a == b)
{
    //The above expression returned a true
    //so the code in this block will be executed
}

public static bool operator ==(MyObject myObjectA, MyObject myObjectB)
{
    return (myObjectA.value == myObjectB.value);
}

public override bool Equals(object obj)
{
    if (obj is MyObject)
        return Equals((MyObject)obj);
    return false;
}
public bool Equals(MyObject other)
{
    return this.value == other.value; // uses == operator
}