String

What's String?

String is an Array of characters.

Important

at the end of array you must add '\0' which represents the end of string.

	char string[] = { 'H', 'e' ,'l', 'l', 'o', '\0'};

	std::cout << string << std::endl; //Hello

if you forget to add '\0' at the end, you'll end up having strange characters in your string

	char string[] = { 'H', 'e' ,'l', 'l', 'o'};

	std::cout << string << std::endl; //Hello╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠

There are different ways to make a string in C++

	const char* string = "Hello World!"; //'\0' will be added automatically by the IDE

	std::string string = "Hello World!"; //'\0' will be added automatically by the IDE

	char arrayOfCharacters[] = "Hello World!"; //'\0' will be added automatically by the IDE

What's ASCII code:

ASCII stands for (American Standard Code for Information Interchange), is set of numeric codes that computers use to represent English characters and some special symbols.

	char string[] = { char(72), char(101), char(108), char(108), char(111),'\0'};

	std::cout << string << std::endl; //Hello

In this website, DEC (Decimal number) stands for ASCII code of each character. See ASCII Codes

Tip

One of the usages of the ASCII code is to convert lowercase characters into uppercase
You can see the example in My Custom String Class

My Custom String Class

My Custom String Class