Store and remove data

Using Arduino Storage
#1

Is it possible to store data by clicking a button and when new data is to be entered, old data must be automatically removed.

For example, if i am using ultrasonic sensor and when i measured 5cm with it and click the above mentioned button 5cm must be saved to its memory and when i measure 13 cm and press the same button it must display 13cm not the 5cm.

#2

Yes, this is possible.

The IDE is packed with worked examples, and most libraries also have device-specific examples

#3