# Summary

So, we learned that:

• an array is a bunch / group / collection of variables that are treated as one object;
• to create an array you need to:
  • declare a reference variable that points to the array
  • and create the array object itself;
• you can specify how big you want your array to be.

# When to use arrays?

The array is amazing for storing a fixed list of values. It has a fixed length to work with, and this might be the problem. 😅

# Why using arrays?

Arrays are useful because they provide the ability to store instances of the same type and at the same time manipulate individual items.

# What are the drawbacks?

These are the drawbacks for arrays:

• once you create an array, you can't change its length (fixed size);
• you must know in advance how many elements are in an array;
• you can't dynamically allocate memory (dynamic allocation);
• the elements of an array are stored in consecutive memory locations which means that insertion and deletion operations are very difficult and time consuming;
• arrays are useful, but they are a bit “old-school” in their style.

# Bye

Thanks for your time 😄

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