Help using MSDN.

Use the MSDN (Microsoft Developer Network) and learn about the Framework Class Library (FCL)

1. What Method of the String class could you use to join 3 separate Strings into one String? Does the method return a value? Give a code example on how to use the Method. You only need to show how to call the Method.

2. What Property of the CheckBox class can be used to determine whether or not the user placed a checkmark in the CheckBox?

3. What Property of the ComboBox class will return a string representing the users choice from the list of things in the ComboBox? What Event from this class fires when the user of the control chooses an item from the ComboBox.