You might know that Java passes by value, but it helps to understand why. Here's what happens when you pass mutable and immutable object references in Java. Many programming languages allow ...

When making a copy of an object, it is important to avoid using the same object reference. It’s an easy mistake, as this example shows. To start, here’s the Product object we’ll use in our ...

Reference objects aren't just useful when memory is at a premium; they can also be used to provide slick caching abilities to any application.

Tools including Microsoft ASP.NET and HTML/JavaScript tools enable you to generate dynamic webpages as well as can prevent errors like “Object reference not set to an instance of an object.” ...