What is the use of the override keyword?

What is the use of the override keyword?

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The override keyword is used to override the method declared in the base class after inheriting it from the sub class. The method overridden by an override declaration is known as the overridden base method. The method overridden in the sub class must have the same signature as the base class method. A nonvirtual or static method cannot be overridden. The following code snippet displays the use of the override keyword:

public class base
{
    public void virtual show()
   {
   Console.Write("Base Class");
   }
}
public class sub
{
   public void override show()
   {
   Console.Write("Sub Class");
   }
}

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