A pre-defined function is built into the language to handle basic functions. The Windows equivalent would be, or example, PRINT, or FILE SAVE.
Most programming languages have pre-defined functions built in, such as
- finding an average number
- determining the length of a string
- handling dates, times, etc
- opening, reading, writing to and closing files
Take a look at 2 common languages – what predefined code is available to the programmer?
- PHP
- JAVA