Difference between Static and Dynamic Memory allocation

Static Memory Allocation In this case, variables get allocated permanently Allocation is done before program execution (compile time) It uses the data structure called stack for implementing static allocation Less efficient There is no memory reusability Example: primitive data type

Dynamic Memory Allocation In this case, variables get allocated only if your program unit gets active Allocation is done during program execution (run time) It uses the data structure called heap for implementing dynamic allocation More efficient There is memory reusability and memory can be freed when not required Example: object, pointer variable