When we have to start a computer, all we have to do is press the start button.
We really do not care what all things go inside the computer hardware and software.
It is an example of Facade pattern.
In Java programming, we must have connected to a database to fetch some data.
We simply call the method dataSource.getConnection() to get the connection but internally a lot of things happen such as loading the driver, creating connection or fetching connection from pool, update stats and then return the connection reference to caller method.
It is another example of Facade pattern in the programming world.
Similarly, we can find a lot of more examples which hide lots of internal complexities and provide simple to use interface to the programmer to work with the system.
All such are facade examples.