Answer:
The most common use of symbols by programmers is for performing language reflection (particularly for callbacks), and most common indirectly is their use to create object linkages. In the most trivial implementation, they have essentially named integers (e.g. the enumerated type in C).
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Answer:
That is called declaring a variable
Explanation:
The most obvious one would be recycling, another one would be to use plastic bags to hold things in your house, instead of boxes. I run a business, and my business requires me to ship a lot. I often use plastic bags as packaging material. Hope this helps!
Answer:
The NEA’s focus on building new performing arts centers led to an increased production of arts.
