I am feel very difficult in pointer concept, please give me some easy points?

Simplest thing is to understand that pointers are essentially variables that store addresses of other variables (I call them address variables). The normal variables that we declare in our programs, refer to them as data/storage variables. So address variables store address of data variables and in any assignment the LHS and RHS should be of the same type, either address variables (or equivalent) or data variables (or equivalent). read less

Pointers are aptly name: they "point" to locations in memory. Think of a row of safety deposit boxes of various sizes at a local bank. Each safety deposit box will have a number associated with it so that you can quickly look it up. These numbers are like the memory addresses of variables. A pointer in the world of safety deposit box would simply be anything that stored the number of another safety deposit box. Perhaps you have a rich uncle who stored valuables in his safety deposit box, but decided to put the real location in another, smaller, safety deposit box that only stored a card with the number of the large box with the real jewelry. The safety deposit box with the card would be storing the location of another box; it would be equivalent to a pointer. In the computer, pointers are just variables that store memory addresses, usually the addresses of other variables. read less