1. What is wrong with the following interface?2. Compile this program:public interface House { @Deprecated void open(); void openFrontDoor(); void openBackDoor(); }What happens? Can you explain why?interface Closable { void close(); } class File implements Closable { @Override public void close() { //... close this file... } }3. Consider this implementation of the
House
interface, shown in Question 1.If you compile this program, the compiler complains thatpublic class MyHouse implements House { public void open() {} public void openFrontDoor() {} public void openBackDoor() {} }open
has been deprecated (in the interface). What can you do to get rid of that warning?