Learn all about arrays in C++, useful stuff.
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Arrays in C and Cpp Programming
Arrays are useful critters because they can be used in many ways. For example, a tic-tac-toe board can be held in an array. Arrays are essentially a way to store many values under the same name. You can make an array out of any data-type including structures and classes.
This would make an integer array with 100 slots, or places to store values(also called elements). To access a specific part element of the array, you merely put the array name and, in brackets, an index number. This corresponds to a specific element of the array.
The one trick is that the first index number, and thus the first element, is zero, and the last is the number of elements minus one. 0-99 in a 100 element array, for example.
What can you do with this simple knowledge? Lets say you want to store a string, because C had no built-in datatype for strings, it was common to use arrays of characters to simulate strings. (C++ now has a string type as part of the standard library.)
will allow you to declare a char array of 100 elements, or slots. Then you can receive input into it it from the user, and if the user types in a long string, it will go in the array. The neat thing is that it is very easy to work with strings in this way, and there is even a header file called cstring.
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