just know 3 things: 1  Pointer is a variable that store the address of another variable (or just any address). * 2  is used to get the value at the memory location that is stored in the pointer variable. & 3  operator gives the address of a memory location.sually what I do is represent memory as a grid, so that I can make up addresses, highlight different memory spaces and write in the cells values (or even further, their binary representations) and link the pointers in memory to the values they point at.
The accepted rule of thumb is that if you're properly refrigerating it, your carton of whole milk's expiration date is five days after the sell-by date.
How long is milk good for after the sell-by date? By August 10, 2012. If you bring milk home from the store and open it on the sell-by date, it may be good for anywhere from two to five more days. That assumes you close the container in between uses, don't let it sit out at room temperature, and store it in the colder part of your refrigerator.