Will the following code compile? public interface Repository{ void save(Object data); }

public abstract class RepositoryImpl implements Repository{ }

Say we have java entity with date field. For example: @Entity class User{ private Date joinDate; public Date getJoinDate(){ return joinDate; } public void setJoinDate(Date joinDate){ this.joinDate = joinDate; } } What JPA annotation will help us specify date format that will be used in database?

Which will compile without any error?

Which classes might be considered encapsulated: class Jason{ public int age; public String name; } class Sam{ private int age; private String name; public void setAge(int age){ this.age = age; } public intgetAge(){ return age; } public String getName(){ return name; } public void setName(String name){ this.name = name; } }

Which statement regarding Java classes is true?

We are writing an application to manage auto parts. Auto part has String key as id. Which collection will be the most efficient, if we are going to search parts by id?

Which type(s) cannot be used as generics?

Which is true? (Choose all that apply) public class UpWork { public staic void main(String[] args) { UpWorkupw = new UpWork(); }}

How we can make entity class or method final in JPA ?

What is required for EJB asynchronous method?

Which is true? (Choose all that apply)