ADVANCED JAVA PROGRAMMING

1- What is wrong with the following interface? public interface House {

@Deprecated

void open();

void openFrontDoor();

void openBackDoor();}

2- Consider this implementation of the House interface, shown in Question 1. public class MyHouse implements House {

public void open() {}

public void openFrontDoor() {}

public void openBackDoor() {}

}

If you compile this program, the compiler produces a warning because open was deprecated (in the interface). What can you do to get rid of that warning?

3- Will the following code compile without error? Why or why not? public @interface Meal { ... } @Meal("breakfast", mainDish="cereal")

@Meal("lunch", mainDish="pizza")

@Meal("dinner", mainDish="salad")public void evaluateDiet() { ... }

4- Define an annotation type for an enhancement request with elements id, synopsis, engineer, and date. Specify the default value as unassigned for engineer and unknown for date