ling95
24.09.2019 •
Computers and Technology
1.every javafx.event.event object has the method.
a.getsource()
b.getactioncommand()
c.gettimestamp()
d.getwhen()
e.getkeychar()
2.the code in a thread that is different than the main/ui thread should directly manipulate user interface elements?
true
false
3.what is the factory oo design pattern?
a.a method that fills an arraylist based on a data source.
b.saving object data to files using serialization.
c.using a method to create objects without having to specify the exact class of the object to be produced.
d.using a thread to construct objects based on a timer tick.
4.objects of a subclass can be assigned to a super class reference.
true
false
5.what is the factory oo design pattern?
a.a method that fills an arraylist based on a data source.
b.saving object data to files using serialization.
c.using a method to create objects without having to specify the exact class of the object to be produced.
d.using a thread to construct objects based on a timer tick.
6.the 'this' keyword is used to resolve conflicts between method parameters and instance fields/methods of the invoked class.
true
false
Solved
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Ответ:
B.getActionCommand()
2.The code in a thread that is different than the main/UI thread should directly manipulate user interface elements?
True
3.What is the Factory OO design pattern?
C.Using a method to create objects without having to specify the exact class of the object to be produced.
4.Objects of a subclass can be assigned to a super class reference.
True
5.What is the Factory OO design pattern?
C.Using a method to create objects without having to specify the exact class of the object to be produced.
6.The 'this' keyword is used to resolve conflicts between method parameters and instance fields/methods of the invoked class.
False
Ответ: