What are collections and generics
What are collections and generics?
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A collection can be defined as a group of related items that can be referred to as a single unit. The System.Collections namespace provides you with many classes and interfaces. Some of them are - ArrayList, List, Stack, ICollection, IEnumerable, and IDictionary. Generics provide the type-safety to your class at the compile time. While creating a data structure, you never need to specify the data type at the time of declaration. The System.Collections.Generic namespace contains all the generic collections.
Final method: This is a method with the final reserved word in its header. The final method might not be overridden by a method stated in a sub class.
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Absolute filename: It is a filename whose full path is unambiguously provided starting from the top (that is, root) of a file system tree. For example: c:\Java\bin\javac.exe
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