There is no single data type for images as there are many different ways to represent an image in computer memory. At best we can describe all image types as being a binary data type. In order to determine the actual type we must read the first few bytes of data looking for a known signature. Once we know the image type we can read the complete image header correctly and thus obtain the specific information we need to decode the payload properly.
Note that we cannot rely on the file extension to determine the data type. Changing a BMP extension to a JPG extension does not change the file's encoding, it merely changes its name (the extension is considered part of the fully-qualified file name). A file's extension simply provides a convenient method for the operating system to associate file types with the applications that use them without having to examine the file itself.
It is used to convert the value of one datatype into a value of another datatype. Example- Integer.parseInt(in.readLine); It converts given value to Integer datatype.
double
void
enum
size_t for input, void * for output
in Unix: the datatype is "Date" in C++: the datatype is "char"
in Unix: the datatype is "Date" in C++: the datatype is "char"
sizeof(datatype)
It is used to convert the value of one datatype into a value of another datatype. Example- Integer.parseInt(in.readLine); It converts given value to Integer datatype.
pointer
stack abstract datatype
datatype function_name() { }
double
Any datatype which the user creates in code, that isn't native to the language. A linked list can be an example of this
datatype variable name;
integer literal
A database can be created using DML (data manipulation language). Example create table table_name (name datatype , name datatype...... ) .