Exam 8: A Second Look at Classes and Objects

If you write a toString method to display the contents of an object, object1, for a class, Class1, then the following two statements are equivalent: System.out.println(object1); System.out.println(object1.toString());

In Java, it is possible to write a method that will return:

Static methods can only operate on ________ fields.

The JVM periodically performs this process to remove unreferenced objects from memory.

Java automatically stores this value in all uninitialized static member variables:

When a reference variable is passed as an argument to a method:

A single copy of a class's static field is shared by all instances of the class.

A declaration for an enumerated type begins with this key word.

A class's static methods do not operate on the fields that belong to any instance of the class.

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?

When the this variable is used to call a constructor:

When a field is declared static, there will be:

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

If the this variable is used to call a constructor:

Look at the following declaration: enum Tree { OAK, MAPLE, PINE } What is the ordinal value of the MAPLE enum constant?

Enum constants have a toString method.

Which of the following is NOT true about static methods?

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

A static field is created by placing:

CRC stands for: