![]() |
subject > programming language construct > data item > variable > class variable > Java class variable |
![]() ![]() | ||||
Java class variable | ||||
subject | fact |
Java class variable | can serve as a global variable | ![]() |
is a subtopic of The Basics of Java | ![]() | |
is accessed by specifying the name of the class, followed by a dot, followed by the name of the variable | ![]() | |
is declared in the body of the class (not inside a method) | ![]() | |
is marked as static | ![]() | |
is a kind of class variable | ![]() | |
is a kind of Java variable | ![]() | |
Java variable | can have an interface as its type which means that, with the variable, you can invoke any operation supported by the interface | ![]() |
is declared by giving the data type followed by the name of the variable | ![]() | |
should be as private as possible | ![]() | |
class variable | has a value that is shared by all instances of a class | ![]() |
has purpose storing: | ![]() | |
is shared by all instances of the class | ![]() | |
should not be overused | ![]() | |
variable | can contain different classes of objects depending on the type of the variable | ![]() |
can refer to a particular object, several different objects during the execution of a program, or no object at all | ![]() | |
has scope | ![]() | |
has type | ![]() |