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object > GUI event object |
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GUI event object | ||||
subject | fact |
GUI event object | has definition A common object used in GUI window systems to represent the action of a user pressing a mouse button or a key on the keyboard | ![]() |
is a subtopic of Graphical User Interfaces | ![]() | |
is a kind of object | ![]() | |
represents an action of the user | ![]() | |
object | when an object is created
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can access all instance variables of all objects of its class | ![]() | |
can be encapsulated by providing accessor methods | ![]() | |
can be converted into a string using the toString method ![]() | ![]() | |
can be referred to without reference to the instance variables contained in it ![]() | ![]() | |
can be referred to by several different variables at the same time ![]() | ![]() | |
can communicate with every object to which it has access through its public interface | ![]() | |
can convert itself to a string representation using the toString method ![]() | ![]() | |
can model ![]() | ![]() | |
can notify other objects that a condition variable has changed | ![]() | |
can receive messages from
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can return its class using the getClass method | ![]() | |
can send messages to
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can wait on 0 or more condition variables | ![]() | |
communicates with other objects by sending and receiving messages ![]() | ![]() | |
has 0 or more instance variables | ![]() | |
has 0 or more methods called instance methods | ![]() | |
has behaviour that is specified by its methods ![]() | ![]() | |
has state that is maintained in its variables ![]() | ![]() | |
has example of creation String name = new String(); | ![]() | |
has part public interface | ![]() | |
hides methods from other objects using the 'private' keyword | ![]() | |
inherits instance methods and instance variables from | ![]() | |
is distinct from every other object even if they contain the same data ![]() | ![]() | |
is created by
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shares every instance method of its class with the other instances of its class | ![]() | |
shares its implementation with other instances of its class | ![]() | |
shares one copy of each class variable of its class with the other instances of its class ![]() | ![]() | |
to create you use the new operator | ![]() |
Kinds of GUI event object :
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