GWT Online Quiz

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.

Q 1 - Which of the following is correct about GWT?

A - GWT is extensible and custom widget can be created to cater to application needs.

B - GWT applications can run on all major browsers and smart phones including Android and iOS based phones/tablets.

C - Both of the above

D - None of the above.

Answer : C

Explaination

Both of the above options are correct.

Q 2 - What is the purpose of 'module' tag in *.gwt.xml file in GWT?

A - This provides name of the application.

B - This adds other gwt module in application just like import does in java applications. Any number of modules can be inherited in this manner.

C - This specifies the name of class which will start loading the GWT Application.

D - None of the above.

Answer : A

Explaination

'module' tag in *.gwt.xml file provides name of the application.

Q 3 - What is the purpose of setStyleName() function of a GWT widget?

A - This method will clear any existing styles and set the widget style to the new CSS class provided using style.

B - This method will add a secondary or dependent style name to the widget.

C - This method will remove given style from the widget and leaves any others associated with the widget.

D - This method sets the object's primary style name and updates all dependent style names.

Answer : A

Explaination

setStyleName() method will clear any existing styles and set the widget style to the new CSS class provided using style.

Q 4 - Which of the following class is the superclass of all user-interface classes?

A - UIObject

B - Widget

C - Panel

D - None of the above.

Answer : A

Explaination

The class UIObject is the superclass for all user-interface objects.

Q 5 - Which of the following gwt widget represents a simple <a> element?

Answer : D

Explaination

Anchor widget represents a simple <a> element.

Q 6 - Which of the following gwt widget represents a file upload?

Answer : B

Explaination

FileUpload widget represents a file upload.

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 GWT widget wraps its contents in an HTML <FORM> element?