Study tips 1Z0-851

Given a class whose instances, when found in a collection of objects, are sorted by using the compareTo() method, which two statements are true? (Choose two.)

What supports these requirements?

Which two methods should be overridden to assure that Key works correctly as a key? (Choose two.)

What is the appropriate definition of the hashCode method in class Person?

Which statement is true about the set variable on line 12?

What two must the programmer do to correct the compilation errors? (Choose two.)

Which three statements are true? (Choose three.)

What is the result?

Which two code fragments represent these relationships? (Choose two.)

What design issue has the team discovered?