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.
If stored around 37 degrees Fahrenheit, pasteurized milk will remain fresh for two to five days after its sell-by date. And yogurt? Use within seven days of opening and keep tightly covered, says Baker. If unopened, it should still be good up to a few weeks after the date stamped on it.