GWT Online Quiz


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Following quiz provides Multiple Choice Questions (MCQs) related to GWT. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.

Questions and Answers

Answer : B

Explaination

'inherits' tag in *.gwt.xml file adds other gwt module in application just like import does in java applications. Any number of modules can be inherited in this manner.

Q 3 - Do GWT compiler creates default Id attribute for its Widget by default?

A - true

B - false

Answer : B

Explaination

No! By default, neither the browser nor GWT creates default id attributes for widgets.

Q 5 - Which of the following gwt widget represents a standard push button?

A - Button

B - PushButton

C - ToggleButton

D - RadioButton

Answer : A

Explaination

Button widget represents a standard push button.

Q 6 - Which of the following gwt widget represents a hidden field?

A - TextArea

B - GWTHidden

C - Hidden

D - TextBox

Answer : C

Explaination

Hidden widget represents a hidden field.

Q 7 - Which of the following panel arranges two widgets in a single vertical column and allows the user to interactively change the proportion of the hight dedicated to each of the two widgets?

A - HorizontalSplitPanel

B - VerticalSplitPanel

C - HorizontalPanel

D - VerticalPanel

Answer : B

Explaination

VerticalSplitPanel widget represents a A panel that arranges two widgets in a single vertical column and allows the user to interactively change the proportion of the height dedicated to each of the two widgets. Widgets contained within a VertialSplitPanel will be automatically decorated with scrollbars when necessary.

Q 8 - Which of the following widget represents a type of widget that can wrap another widget, hiding the wrapped widget's methods?

A - Composite

B - SimplePanel

C - ScrollPanel

D - FocusPanel

Answer : A

Explaination

Composite widget represents a type of widget that can wrap another widget, hiding the wrapped widget's methods. When added to a panel, a composite behaves exactly as if the widget it wraps had been added.

Q 9 - Which of the following interface a java data object should implement so that it can be transferred over the wire in GWT RPC?

A - isSerializable

B - isTransferrable

C - isWirable

D - wirable

Answer : A

Explaination

A java data object should implement isSerializable interface so that it can be transferred over the wire in GWT RPC.

Q 10 - Which of the following logger logs to the popup which resides in the upper left hand corner of application when this handler is enabled.

A - PopupLogHandler

B - DevelopmentModeLogHandler

C - ConsoleLogHandler

D - FirebugLogHandler

Answer : A

Explaination

PopupLogHandler logs to the popup which resides in the upper left hand corner of application when this handler is enabled.

gwt_questions_answers.htm
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