What Is a Global Variable? A computer program is, essentially, a list of instructions for a computer to carry out when you run it. However, most programs are complex enough that they outgrow a ...

Java gives you the ability to dynamically create strings. Even after you set the string value, you can add more characters to the string value throughout the code. This process lets you build a ...

Irina Medvinskaya offers an example that shows how VB.NET's String.Compare method can come in handy when you need to compare two string variables.

You use the "toUpperCase" function to convert a string value to all uppercase letters. You use this function when you want to display standardized data on the pages.