All data types in C++

int: This is used to declare an integer data type, which stores whole numbers. float: This is used to declare a floating point data type, which stores decimal numbers. double: This is used to declare a double-precision floating point data type, which stores larger decimal numbers with higher precision. char: This is used to declare a character data type, which stores a single character or letter. bool: This is used to declare a Boolean data type, which stores true or false values. wchar_t: This is used to declare a wide character data type, which stores a wide character typically used in internationalization. short: This is used to declare a short integer data type, which stores smaller whole numbers than an int. long: This is used to declare a long integer data type, which stores larger whole numbers than an int. long long: This is used to declare a long long integer data type, which stores very large whole numbers.