SQL: The Ultimate Guide to Programming in SQL for Beginners, with Exercises for Learning SQL Languages and the Coding, Easily and in a Short Time (Step-by-Step Guide) by Géron Daniel

Author:Géron, Daniel [Géron, Daniel]
Language: eng
Format: epub
Published: 2019-11-11T16:00:00+00:00

The Arrays

The first thing that we need to look at in this chapter is how the arrays are going to work in our C++ code. These are going to be a type of structure of data that can store elements that are of the same type and the same size that is fixed. These are going to be the collection, in other words, of the same type of variables. But instead of going through and using some of the individual variables to make this happen, you would be able to work with one array, such as an array of numbers. To make this happen, we would be able to use the numbers of 0 to 99 and then each one can be accessed by the index that comes on the array.

double balance [5]= {1000.0, 2.0, 3.4, 17.0, 50.0};

The numbers that are found in the bracket that we wrote should never end up higher than the number of elements that you plan to use. This means that if you place a five in the brackets, as we did above, and then place six numbers into the array because there will not be enough space inside the memory to do this. However, it is possible to not specify the size of the array. This is helpful if you are not sure how big the array will be ahead of time so that you can add in as many numbers as are needed. You would write it out like the following:

double balance [] {1000.0, 2.0, 3.4, 17.0, 50.0};

With the second one that we just looked at, we are going to get the same kind of array as the previous example, but we are going to start out by not specifying the size of our array in the first place. This one is going to make sure that we are able to get the program to handle the coding for us.

Now that we have been able to look at the basics that come with writing out one of these arrays, it is now time for us to learn how we would be able to take the information that is inside of the array and use it inside of any programs that we want to write. This is going to seem a bit more advanced in some cases, but it is going to be able to help us add in some more elements to our code along the way. This is one of the best ways to also learn a bit more about these arrays and what they are able to do for us. A good example of how to work with these arrays is going to include the following:

#include <iostream>

using namespace std;

Download

Copyright Disclaimer:
This site does not store any files on its server. We only index and link to content provided by other sites. Please contact the content providers to delete copyright contents if any and email us, we'll remove relevant links or contents immediately.