This is a simple C program to show pointers and how you can use pointers to print address of variables and their contents.
This program prints the address of a variable, value of a variable, values of pointers.

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Output from running this C program on my computer:
Address of x = 536869640, value of x = 1
Address of y = 536869632, value of y = 536869640, value of *y = 1
Address of a = 536869608, value of a = 9
Address of b = 536869600, value of b = 536869640, value of *b = 1