The class has been cancelled.
System & Device Check
About the Class
A union, is a collection of variables of different types, just like a structure. However, with unions, you can only store information in one field at any one time.
A union can also be viewed as a variable type that can contain many different variables (like a structure), but only actually holds one of them at a time (not like a structure). This can save memory if you have a group of data where only one of the types is used at a time. The size of a union is equal to the size of it's largest data member.
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