Exam 6: A Second Look at Classes and Objects

A method's signature consists of

Of the following, which would be considered the no-arg constructor for the Rectangle class?

When you make a copy of the aggregate object and of the objects it references,

A class that is defined inside of another class is called a(n)

When a method's return type is an object, what is actually returned to the calling program?

When an object is passed as an argument, it is actually a reference to the object that is passed.

Assume the class BankAccount has been created, and the following statement correctly creates an instance of the class: BankAccount account = new BankAccount(5000.0); What is true about the following statement? System.out.println(account);

If you have defined a class SavingsAccount with a public static method getNumberOfAccounts, and created a SavingsAccount object referenced by the variable account20, which of the following will call the getNumberOfAccounts method?

Enumerated types have this method, which returns the position of an enum constant in the declaration list.

Look at the following declaration: Enum Tree { OAK, MAPLE, PINE } What is the fully-qualified name of the PINE enum constant?

When a method in the ________ class returns a reference to a field object, it should return a reference to a copy of the field object to prevent "security holes."

An instance of a class does not have to exist in order for values to be stored in a class's static fields.

The only limitation that static methods have is

If object1 and object2 are objects of the same class, to make object2 a copy of object1

You can use the enum key word to

enum constants have a toString method.

________ is the term for the relationship created by object aggregation.

The "has a" relationship is sometimes called a(n) ________ because one object is part of a greater whole.

What will be returned from the method, if the following is the method header? Public Rectangle getRectangle()

You can declare an enumerated data type inside of a method.